41 results about "Optical force" patented technology

The invention provides a passive laser gyroscope based on a light force induced transparency effect and a measurement method thereof, the passive laser gyroscope comprises a frequency stabilized laser light source, a signal modulation input device, a balance homodyne detection device, an annular optical resonant cavity and a signal detection and feedback device, wherein a reflection cavity mirror with a photomechanical resonance structure characteristic is integrated in the annular optical resonant cavity; according to the passive laser gyroscope, a narrow transparent window modulated by a mechanical damping rate is generated on an annular optical resonant cavity of the passive laser gyroscope by utilizing a light force induced transparency effect and a light-mechanical coupling effect, so that the quality factor of the annular optical resonant cavity is improved, and the measurement sensitivity of the passive laser gyroscope is enhanced.

The invention discloses a low-refractive-index particle size sorting method and device based on perfect vortex light. The method comprises the following steps that a solution containing low-refractive-index particles is placed in a sample pool; a plurality of perfect vortex light beams are focused at a sample cell to form a double-ring perfect vortex light field; the double-ring perfect vortex light field is provided with an inner ring light field and an outer ring light field, and a sorting channel is formed between the inner ring light field and the outer ring light field; the low-refractive-index particles move between the inner ring light field and the outer ring light field under the driving action of the phase gradient force; the low-refractive-index particles move to the sorting channel, the large-size low-refractive-index particles enter the inner ring light field under the action of inward light force, and meanwhile, the small-size low-refractive-index particles meeting the stable capturing condition continue to move on the double-ring perfect vortex light field after passing through the sorting channel, so that sorting is completed; according to the method, the low-refractive-index particles with different sizes can be separated into different areas to finish sorting only by virtue of a light force effect generated by a double-ring perfect vortex light field in a sample pool on the particles.

The application provides a method for regulating nerve cells based on photo-induced micro-nanometer oscillators and application thereof, and belongs to the technical field of nerve cell regulation. The method comprises the following steps: adding photo-induced micro-nanometer oscillators in an extracellular system of nerve cells, and constructing a first optical potential well by using an optical tweezer system; the first optical potential well captures the photo-induced micro-nanometer oscillators, and positions the photo-induced micro-nanometer oscillators beside the nerve cells; the optical tweezer system is used to periodically switch the laser beam between two preset positions, so that the photo-induced micro-nanometer oscillators vibrate. The application utilizes optical force to drive the photo-induced micro-nanometer oscillators to vibrate and generate local ultrasonic waves, and does not need gene modification or implantation of devices, and the spatial resolution can reach a sub-micron level, thereby solving the contradiction between precision, damage and applicability in the prior art, and providing a new tool for nerve regulation.

The invention relates to an experimental device for coupling optical acting force and suspension liquid optical nonlinear measurement, which comprises a laser control module and a microscopic imaging module, and the laser control module and the microscopic imaging module are respectively arranged in two orthogonal directions of a suspension liquid; the suspension liquid is placed in a transparent sample pool; the laser control module comprises a laser, a beam expander, a focusing lens, an imaging lens and a light beam analyzer which are arranged in sequence; the sample cell is positioned between the focusing lens and the imaging lens; the microscopic imaging module comprises a light source, a lighting lens, an imaging lens and an imaging camera which are arranged in sequence; the sample cell is located between the illumination lens and the imaging lens. Compared with the prior art, the device is provided with the laser control module, so that backward acting force for inducing particles in the suspension can be formed, and meanwhile, the focusing nonlinear effect in the suspension can be researched; and the microscopic imaging module can record moving images of particles in the suspension for subsequent analysis.

The invention discloses a Terfenol-D magnetostrictive material-based optical force magnetometer magnetic measurement method, which comprises the following steps of: firstly, densely winding a single-mode optical fiber on the surface of a Terfenol-D magnetostrictive element in multiple circles, so that the magnetostrictive deformation of the Terfenol-D magnetostrictive element under the action of an external magnetic field is transmitted to the single-mode optical fiber; an unequal-arm Mach-Zehnder interferometer is constructed; the method comprises the following steps: applying magnetic fields under magnetic fields with different intensities, measuring change values of interference phases under the magnetic fields with different intensities according to a magnetostrictive strain relationship of a Terfenol-D magnetostrictive element, and establishing a calibration curve between the change values of the interference phases and the external magnetic field intensity; when a magnetic field to be measured acts on the sensing arm, the corresponding external magnetic field intensity is calculated according to the calibration curve. The magnetic measurement method is simple in structure, all signals are transmitted through an optical path, and electromagnetic interference can be effectively resisted; the measuring process is quick in response, and is suitable for quickly changing magnetic field measurement.

The invention belongs to the technical field of optical communication testing, and relates to a method and a system for synchronously testing plugging force and optical performance of an optical fiber connector. The method comprises the following steps: constructing a synchronous test environment and setting a plugging speed, synchronously acquiring plugging force, displacement and real-time optical insertion loss data in a whole plugging stroke, and performing data alignment by taking the displacement as a reference; according to the change rate of the insertion and extraction force along with the displacement and the real-time optical insertion loss, calculating a mechanical rigidity abnormal index which is used for representing the microcosmic clamping stagnation degree in the insertion and extraction process; combining the mechanical stiffness anomaly index and the fluctuation characteristic of the optical insertion loss to calculate the optical force coupling strength so as to identify the optical signal anomaly caused by the mechanical vibration; and calculating the comprehensive defect score of the connector by combining the light-force coupling strength and the mechanical total work in the plugging process, and judging the quality grade of the connector. According to the invention, the dynamic hidden defects in the optical fiber connector can be effectively identified.

The miniaturized electric field probe comprises a transparent glass cavity, a metal sleeve, a protective cover, an ultraviolet transparent window and an integrated circular tube, the transparent glass cavity is provided with a containing cavity, one end of the transparent glass cavity is open, a hole is formed in the outer side of the cavity wall, the ultraviolet transparent window is embedded in the hole, and the metal sleeve is sleeved with the protective cover. The laser support is used for observing laser support; a first groove is formed in the open end of the transparent glass cavity, one end of the protective cover is embedded in the first groove and matched with the first groove, and a space defined by the protective cover and the transparent glass cavity is a sealed space; a first through hole and a second through hole are formed in the protective cover in the axial direction, the metal sleeve is inserted into the first through hole and communicates with the containing cavity of the transparent glass cavity, and the sealed space is vacuumized through the metal sleeve; and the integrated circular tube is inserted into the second through hole and is communicated with the accommodating cavity of the transparent glass cavity for capturing laser alignment. According to the invention, capturing, moving and sensing of particles can be realized without introducing mechanical contact and friction.

This invention relates to the field of optical manipulation technology, and more specifically, to a method for optical manipulation based on a dimer. The purpose of this invention is to solve the problem of insufficient lateral optical force control. The dimer is constructed by assembling two isotropic particles, and is placed on a sample stage and completely immersed in a homogeneous medium. The optical manipulation method is as follows: a circularly polarized Gaussian beam is shaped into an incident light with an elliptical cross-section. The incident light is guided to obliquely illuminate the dimer and project an elliptical spot with a major axis and a minor axis onto the substrate of the sample stage. The angle of inclination formed by the incident light and the normal to the substrate of the sample stage is ∈ (0°, 90°), with the major axis perpendicular to the propagation direction of the incident light and the axis of the dimer parallel to the minor axis, so that the incident light induces a lateral optical force on the dimer, the direction of which is parallel to the major axis. By adjusting the rotation direction of the circularly polarized Gaussian beam and the angle of inclination, optical manipulation of the dimer's motion direction and velocity can be achieved.

According to the present invention, a light-emitting unit emits light in the direction of a directional axis. A portion of the light diffusely reflected at a target that intersects the directional axis is received by a first light reception unit. At least one optical waveguide has an input end at a position at which a portion of the light generated by the light-emitting unit is incident. A second light reception unit is provided at a position at which a portion of the light outputted from an output end of the optical waveguide is incident. Displacement of a displacement member by external force changes the power of the light outputted from the output end of the optical waveguide and received by the second light reception unit. A reference light reception unit is provided at a position at which a portion of the light generated by the light-emitting unit as propagated by a reference propagation path that is unaffected by displacement of the displacement member is incident.

This invention relates to the field of microscopic observation technology, specifically to an extended depth-of-focus microscopic imaging system incorporating optical tweezers functionality. The system includes a beam generation and combining module, a signal acquisition module, a signal separation module, an image reconstruction module, and an optical tweezers analysis module. The system generates a phase-modulated extended depth-of-focus illumination beam and an optical tweezers manipulation beam, which are then spatially coaxially combined to form a combined beam, which is then guided into the microscope objective to act on the sample region. The acquired optical signal is divided into independent detection channels through beam splitting processing. The imaging channel, combined with a depth-of-field extension point spread function model, optimizes the fusion algorithm to reconstruct the three-dimensional structure of the sample. The optical tweezers monitoring channel analyzes the optical path signal, calculates the three-dimensional position of particles, trapping stiffness, and optical force, and visualizes the three-dimensional relative relationship between these two parameters by combining the imaging results. This scheme achieves integrated design of the imaging optical path and the optical tweezers optical path, optimizes image reconstruction quality under large depth of field, and enables synchronous and collaborative operation of microscopic imaging and optical manipulation.

The application discloses a high-Briouin gain inverted ridge type chalcogenide waveguide with an air slit and a preparation method thereof. The chalcogenide waveguide comprises a substrate layer and a waveguide layer arranged on the substrate layer. The lower surface of the waveguide layer is outwardly convex to form a ridge type part. The ridge type part of the waveguide layer is embedded in the substrate layer to form an inverted ridge type waveguide structure. The inside of the ridge type part of the waveguide layer is provided with an air slit. The application limits the distribution areas of an optical field and an acoustic field through the inverted ridge type waveguide structure, enhances the acoustic-optical field overlap, simultaneously introduces an air slit structure, causes the appearance of optical radiation force, and makes the optical radiation force strongly coupled with the acoustic field near the air slit, enhances the coupling effect of the optical force and the acoustic field in the waveguide, and thus significantly improves the stimulated Briouin scattering gain. The waveguide structure can be applied to a laser, a microwave photon filter, slow light generation and other nonlinear optical devices.

The invention discloses a high-precision large-caliber primary and secondary mirror assembling and adjusting device and method, and belongs to the technical field of optical assembling and adjusting. The device comprises a primary mirror, a secondary mirror, a primary and secondary mirror chamber, a secondary mirror adjusting tool, an optical force bearing frame and a supporting frame, the primary and secondary mirror chamber is fixed to the optical force bearing frame, and a first bearing part is arranged at one end of the optical force bearing frame; one end of the optical bearing frame is provided with a first bearing piece, the other end of the optical bearing frame is provided with a second bearing piece, the primary mirror is installed at the rear end of the primary and secondary mirror chamber, the secondary mirror adjusting tool is installed at the front end of the primary and secondary mirror chamber, the secondary mirror is arranged on the secondary mirror adjusting tool, and the optical bearing frame is connected with the supporting frame. According to the invention, through stable connection between the primary and secondary mirror chambers and the optical bearing frame and arrangement of the bearing members at the two ends, the positioning precision of the primary mirror and the secondary mirror and the system stability are effectively improved; due to the independent configuration of the secondary mirror adjusting tool, precise adjustment of the secondary mirror is achieved, the assembling and adjusting efficiency is remarkably improved, high-precision alignment of an optical system is ensured, and the assembling and adjusting precision is improved.

The invention discloses a light-force double-response polybutadiene film as well as a preparation method and application thereof, and belongs to the technical field of polymer functional materials and new energy. The method comprises the following steps: firstly, carrying out photosensitive functional modification on a polybutadiene main chain through molecular grafting; then constructing a soluble sacrificial layer on the surface of the matrix, and spin-coating a photosensitive polybutadiene solution to form a film; and annealing and cross-linking, and finally removing the sacrificial layer through selective solvent etching to prepare the independent light-force double-response polybutadiene film. By introducing the photosensitive group and utilizing the mechanical response characteristic of polybutadiene, the film material has light and force dual response functions. The dual-response characteristic can cooperatively regulate and control the ion selectivity and flux of the membrane, and effectively breaks through the performance bottleneck of the traditional membrane, so that the energy density and controllability of salinity gradient energy conversion are remarkably improved, and the membrane is further used for developing a high-performance salinity gradient energy power generation membrane material.

The application discloses a soliton optical frequency comb and an optical microwave signal generation device, which comprises an optical source unit and an input light control unit, is suitable for obtaining amplified first pump laser, amplified second pump laser and amplified third pump laser; a micro resonant cavity unit comprising a micro resonant cavity, is suitable for generating a soliton optical frequency comb through a nonlinear four-wave mixing parametric oscillation process in the micro resonant cavity by using the amplified first pump laser; is suitable for compensating optical power changes caused by frequency mismatch of the amplified first pump laser by using the amplified second pump laser in the micro resonant cavity; and is suitable for suppressing thermal mechanical vibration noise of the micro resonant cavity based on optical force refrigeration effect by using the amplified third pump laser, so as to suppress phase noise of the soliton optical frequency comb; and a soliton optical frequency comb monitoring unit comprising a microwave signal generation module, the microwave signal generation module is suitable for generating an optical microwave signal by using the soliton optical frequency comb.

The invention discloses a six-degree-of-freedom optical force sensing method based on a deformation coding light field, and relates to the technical field of biomedical engineering, optical sensing, micro-robots and artificial intelligence crossing, and the method comprises the following steps: S100, sensor construction and model initialization; s200, carrying out image acquisition and standardization processing; s300, training a submerged space diffusion model; s400, generating a synthetic data set; s500, training a differential feature extraction network model; s600, performing real-time reasoning; and S700, feeding back a reasoning result. High-precision six-degree-of-freedom force / torque sensing is achieved, valuable tactile feedback can be provided for minimally invasive surgery, and the six-degree-of-freedom force / torque sensing device has important clinical application prospects.

The application discloses a high-precision micro gyroscope based on noise compression effect and a working method thereof, mainly relates to a noise compression light source applied to a micro gyroscope based on a silicon-based photonic crystal microcavity, and can be applied to high-precision inertial navigation, missile guidance and other military fields. The application comprises (1) a noise compression light source generation structure; (2) a micro gyroscope structure based on a silicon-based photonic crystal microcavity; (3) a coupling structure of the noise compression light source and the micro gyroscope based on the silicon-based photonic crystal microcavity; and (4) a micro gyroscope test structure based on the silicon-based photonic crystal microcavity. The application has the advantages that the optical scattering noise and other noise sources of a cavity optical force structure in the micro gyroscope based on the silicon-based photonic crystal microcavity can be reduced, and super-high-precision angular velocity detection can be realized.

The application relates to the technical field of acceleration detection by using optical force, and discloses an optical force accelerometer based on spin cooling and a use method, which realizes acceleration detection by using laser-suspended microspheres, and improves detection precision by using the spin cooling effect of the microspheres in an optical field to inhibit thermal motion of the microspheres. Laser is processed into circularly polarized light suitable for capture and rotation driving by a laser modulation unit, and is input into a capture cooling unit; the capture cooling unit utilizes a potential well formed by an optical field to realize capture and rotation cooling of microparticles, simultaneously outputs laser carrying state information of the microparticles, and a displacement detection unit realizes acceleration response output by analyzing and monitoring the displacement state of the microparticles in real time through analysis of outgoing laser; a test unit provides auxiliary illumination and completes visual observation of behaviors of the microparticles, and together forms an optical capture and measurement system. The spin cooling method is adopted to realize cooling of a sensitive mass of the optical force accelerometer, the structure of a cooling system is simplified, performance requirements are reduced, practical potential is high, and cost is low.

The application relates to the technical field of sensors and discloses a fire disaster real-time monitoring method and system based on intelligent sensing, which comprises the following steps: deploying a fire disaster monitoring device in a target area to be monitored, wherein the fire disaster monitoring device comprises a cavity optical force sensor, an acoustic surface wave resonator and a gas sensor; collecting sensor data in the target area through the fire disaster monitoring device, synchronizing the oscillation rhythm of the sensor data, obtaining an oscillation phase matrix; mapping the oscillation phase matrix into a three-dimensional ring surface flow form, topologically reconstructing the three-dimensional ring surface flow form, and obtaining a risk field flow form in the target area, wherein the risk field flow form comprises a curvature distribution, a homology group base vector and a risk intensity; and analyzing a fire disaster abnormal area, a fire disaster spreading path and a fire disaster spreading duration in the target area by using the risk field flow form. The application can synchronously generate a spatial path topology and a time evolution quantitative index of fire disaster spreading.

The invention discloses a piezoelectric ceramic driving-based high-precision cavity optical force micro gyroscope, which comprises fixed columns, a mechanical structure, optical structures, piezoelectric ceramics and a base, the fixed columns are located at four corners of the mechanical structure, the optical structures are located at two ends of the mechanical structure, and the piezoelectric ceramics and the base are located at the lower part of the mechanical structure. The optical structure comprises a cavity light power system and a waveguide structure, the cavity light power system is coupled with the waveguide structure, the cavity light power system is composed of a pair of optical microcavities, and the optical microcavities are a two-dimensional photonic crystal or echo wall mode microcavity, a Fabry-Perot optical microcavity and a one-dimensional nano cantilever beam. The mechanical structure comprises mass blocks and supporting beams, the mass blocks comprise a core mass block, a detection mass block and a driving mass block, the core mass block is located in the center of the gyroscope and is connected with the driving mass block and the detection mass block through cantilever arms, and the supporting beams comprise a driving supporting beam and a detection supporting beam.

This application discloses a non-contact particle grasping device and method based on focused vortex light. The device includes a laser, an attenuator, a beam expander and collimator, a half-wave plate, an achromatic cemented lens, a superlens, a focusing and collimator, a dichroic mirror, an objective lens, a sample stage, and an imaging mechanism arranged sequentially along the optical path. The laser light generated by the laser passes sequentially through the attenuator, the beam expander and collimator, the half-wave plate, and the achromatic cemented lens to reach the superlens. The superlens converts the laser light into topologically adjustable focused vortex light, which then passes sequentially through the focusing and collimator, the dichroic mirror, and the objective lens to reach the sample stage and grasp the particles on the sample stage. The imaging mechanism records the grasping process of the focused vortex light on the particles. This device can use the optical force of vortex light to grasp and manipulate tiny particles non-contactly, performing high-precision and complex manipulation of individual particles in three directions, avoiding damage to the sample caused by high-power lasers.

The invention relates to a sub-hundred nanoparticle control method based on near-field optics. The sub-hundred nanoparticle control method comprises long-distance conveying and sorting. A metal horseshoe-shaped nano aperture array is designed, laser is bound in nano holes by applying a metal local plasmon effect and a metal heat effect to form hot spots of near-field electromagnetic wave enhancement and local temperature gradient, and light force and thermophoresis force are generated; a near field excited structurally is designed into an optical hot spot array with adjustable wavelength, hot spot positions of a light field and a thermal field are periodically changed through wavelength change, and particles are driven to move under the combined action of the light field and the thermal field; according to different stress of particles with different particle sizes, front-back separation of the particles in long-distance transmission in a static liquid environment is realized according to a preset illumination strategy. Compared with the prior art, high-precision long-distance conveying and sorting of particles with different particle sizes can be achieved, and the device has the advantages of being capable of achieving long-distance conveying, high in sorting efficiency, high in control precision and the like.

The invention discloses a ridge waveguide fully integrated cavity optical force accelerometer, which comprises a distributed feedback laser, an on-chip silicon waveguide structure, a mechanical sensitive structure, an on-chip integrated microcavity, an on-chip germanium photoelectric detector, a signal conditioning module, a DC (Direct Current) stabilizing module, a DC power socket and a signal output interface, the on-chip silicon waveguide structure is connected with the mechanical sensitive structure and the on-chip integrated microcavity coupling structure, the mechanical sensitive structure and the on-chip integrated microcavity coupling structure are connected with the on-chip germanium photoelectric detector, the on-chip germanium photoelectric detector is connected with the signal conditioning module, and the signal conditioning module is connected with the DC stabilization module and the signal output interface. The DC stabilization module is respectively connected with the distributed feedback laser and the DC power socket; the distributed feedback laser provides a single longitudinal mode laser source with stable wavelength and strong coherence, ensures efficient generation of an optical mechanical coupling effect, and is a core light source for realizing acceleration high-sensitivity detection.

The invention discloses a system and a method for realizing cell regulation and control based on luminous oscillation stimulation of cell nucleuses, and relates to the technical field of crossing of biotechnology and optical micro-control. The method comprises the following steps: internalizing biocompatible microspheres beside a living cell nucleus, capturing the microspheres by using an optical tweezers module, and driving a light potential well to carry out double-position high-speed alternate switching by using a parameter control unit, so as to construct a programmable optical mechanical oscillator to apply oscillation stimulation to cells in a set direction, frequency and amplitude. According to the invention, the limitation of the traditional method is broken through, and direct and controllable mechanical stimulation and observation on the cell nucleus in the living cell are realized.

The invention relates to the technical field of acceleration detection by utilizing light force, and discloses a light force accelerometer based on spin cooling and a use method thereof, acceleration detection is realized by utilizing laser suspension microspheres, and thermal motion of the microspheres is inhibited by utilizing a spin cooling effect of the microspheres in a light field, so that the detection precision is improved. Laser is processed into circularly polarized light suitable for capturing and rotation driving through the laser modulation unit, the circularly polarized light is input into the capturing and cooling unit, and the capturing and cooling unit forms a potential well through a light field to achieve capturing and rotation cooling of particles and outputs laser carrying particle state information at the same time. The displacement detection unit monitors the displacement dynamic state of the particles in real time by analyzing emergent laser to achieve acceleration response output, the test unit provides auxiliary illumination and completes visual observation of particle behaviors, and an optical capturing and measuring system is jointly formed. The rotary cooling method is adopted to cool the sensitive mass of the luminous accelerometer, the structure of the cooling system is simplified, the performance requirement is reduced, the practical potential is high, and the cost is low.

The invention discloses a cavity light force chaotic acceleration sensing system and a calibration method, is applied to the technical field of sensors, and aims to solve the problem that the existing cavity light force acceleration sensor is difficult to keep stable measurement performance when the frequency and amplitude of acceleration to be detected are both small. Working parameters of the cavity light power system provided by the invention are accurately adjusted to enter a chaotic state; external acceleration acts on the micro-mechanical oscillator, so that the cavity length of the optical resonant cavity is slightly changed, and the chaotic light field is modulated; the photoelectric detection module captures the modulated chaotic light field and converts the modulated chaotic light field into an electric signal; and the signal processing module analyzes the electric signal, establishes a quantitative mapping relation between the acceleration and amplitude, frequency, phase and frequency spectrum changes, inverts the acceleration by using a multi-feature fusion technology, and completes calibration. The system has excellent sensitivity and precision, is particularly suitable for high-precision measurement of micro acceleration, and can be widely applied to the fields of aerospace, precise instruments and the like.

The invention discloses a three-dimensional electrophysiological positioning method and system for suspended particles based on a light force sensing mechanism. The three-dimensional electrophysiology positioning method comprises the following steps: constructing a non-contact three-dimensional space non-uniform electric field, and applying a low-frequency alternating electric field through three groups of in-vitro electrode pairs to form an electric field reference for distinguishing three-axis frequency bands; light force suspended particles are utilized to generate distinguishable and detectable displacement under the action of electric field force in an electric field, and the intensity of a space vector electric field is directly sensed; the method comprises the following steps: acquiring a displacement signal of a particle through a laser interference measurement technology, and decoupling the displacement signal into a three-axis electric field component; eliminating electric field disturbance caused by heartbeat and respiratory movement by combining a dynamic electric field compensation algorithm; based on a secondary mapping model, the particle displacement signal is converted into a three-dimensional space position, and positioning is achieved. The three-dimensional electrophysiology positioning system comprises a three-dimensional non-uniform electric field construction module, a multifunctional luminous catheter and a signal processing and image drawing module. According to the invention, a new mechanism is adopted, the micron-order resolution is realized, and the cost is reduced.

The invention discloses a vacuum thermal isolation packaging structure for a high-precision two-dimensional photonic crystal cavity optical force accelerometer, which comprises a tube shell base, a thermoelectric cooler TEC, an insulating heat sink with a thermal insulation groove, an insulating cushion block, a semiconductor laser chip LD, an SOI substrate, a tube shell enclosure frame and a tube shell cover plate, an accelerometer sensor and an on-chip photoelectric detector (PD) are integrated on an SOI substrate. And the tube shell base is made of a copper-tungsten alloy material. The tube shell enclosure frame and the cover plate are made of kovar alloy materials. The insulation heat sink is placed on the cold end surface of the thermoelectric cooler TEC, a transverse through heat insulation groove is formed in the upper surface of the insulation heat sink, a transverse heat conduction path is physically cut off through the heat insulation groove, and the surface of the insulation heat sink is physically divided into a heat source area and a cold source area. The semiconductor laser chip LD is installed in a heat source area through a cushion block, the SOI substrate is directly installed in a cold source area, and longitudinal thermal resistance is increased through the cushion block.

The present application relates to a kind of mixed optimization method of multilayer film metamaterial microparticle and enhanced optical force, multilayer film metamaterial microparticle is made of multiple periodic structures superposition, each periodic structure is made of different refractive index material layer superposition, the universal multilayer film metamaterial microparticle of the present application, both can simulate the characteristics of existing crystal, also can be realized by design optical constant New crystal, will further expand the applicability of optical force and moment photonic probe in optical tweezers system.In addition, using the mixed optimization method of enhanced optical force of the present application, the time cost of photonic probe design is greatly reduced, which is helpful to the comprehensive study of optical force enhancement.

A system and associated methods including a first light source directed at a sample, the first light source configured to move a plurality of particles within a medium of the sample in response to irradiation by the first light source; a second light source directed at the sample, the plurality of particles providing an optical response to irradiation by the second light source; and a detection system directed at the sample and capable of detecting the optical response of the plurality of particles moved by the first light source and irradiated by the second light source.