81 results about "Polariton" patented technology

The invention relates to the technical field of quantum computing, and provides a polariton quantum computing simulation method and related device.The method comprises the steps that parameterized quantum circuits are generated based on micromodels used for describing polaritons for all to-be-computed excitation states respectively, and the parameterized quantum circuits are generated based on initial Hamiltonian of polaritons in a ground state; the target Hamiltonian amount of the polariton in the current excitation state is obtained, then the value of each parameter is adjusted at least once, and the target energy of the corresponding excitation state is obtained. In the primary adjustment process, parameter updating is carried out on the quantum circuit, a reference quantum state of the corresponding excitation state is obtained by utilizing the updated quantum circuit, reference energy of the corresponding excitation state is obtained based on the reference quantum state and in combination with the target Hamiltonian, and then when a set convergence condition is met, the target Hamiltonian is obtained. And taking the reference energy as target energy of the corresponding excited state. The polaritons are simulated through the quantum computer, and the simulation efficiency is improved.

Provided are a polariton device, a polariton system, a method of manufacturing the polariton device, and a method of controlling the polariton device. The polariton device includes a cavity including a gain layer including a ferroic material that undergoes a phase transition into an asymmetrical crystal structure in response to an external stimulus, an upper reflective layer formed on top of the cavity, a lower reflective layer formed below the cavity, and a Rabi frequency controller configured to control a Rabi frequency of the polariton device by providing a stimulus to the gain layer.

The invention provides a self-cleaning liquid crystal display screen system based on nanostructure enhancement, and relates to the technical field of liquid crystal display screens, the self-cleaning liquid crystal display screen system comprises a liquid crystal display panel, a reconfigurable surface phonon polariton regulation and control layer, a pollutant identification module, an excitation source module, a central control processing unit and an energy recovery module, by dynamically tuning the surface phonon polariton resonance characteristics of the reconfigurable surface phonon polariton regulation and control layer micro-nano structure unit, selective resonance coupling with a target pollutant detected by the pollutant identification module is carried out, and selective activation is carried out by an excitation source. High-selectivity energy transfer generated by resonance causes molecular decomposition or generates field gradient force to achieve physical effects such as particle stripping migration, pollutants are efficiently and intelligently removed, and meanwhile the integrated energy recovery module collects panel waste heat and converts the panel waste heat into driving energy to assist system operation so as to improve energy efficiency. The problems of poor selectivity, low efficiency, high energy consumption and screen damage in the traditional technology are solved.

A continuous-wave perovskite polariton laser device, including an optical microcavity, a spacer layer, and a gain medium. The gain medium is a perovskite material or a composite material containing perovskite, in a form of thin film, microcrystal, phosphor, nanocrystal, quantum dot, or single crystal. The perovskite gain medium is prepared by solution process or vacuum deposition technique, and is combined with an optical resonator. By exploiting the strong interaction between excitons and photons, a steady-state exciton-polariton condensation is formed, enabling the generation of continuous-wave polariton laser emission with a low threshold. The laser device can achieve low-threshold continuous-wave or pulsed lasing emission at room temperature under various light sources pumping or electrical excitation. Its threshold is 1 to 3 orders of magnitude lower than that of conventional semiconductor lasers, with an optimized threshold as low as 0.1 to 1 W / cm2, representing a novel ultralow-power coherent light source technology.

The invention discloses an ultrafast heat switching device and a design method thereof. The ultrafast heat switch device comprises a first polariton layer, a fixed near-field gap and a second polariton layer which are sequentially arranged from top to bottom. According to the design method, an external ultrafast light pulse is utilized to excite a first polariton layer, and mid-infrared transient polaritons are generated. Time-varying coupling occurs between the transient polaritons and polaritons of the second polariton layer, opening or closing of a near-field thermal radiation channel is dynamically controlled, and a thermal switch function is realized. Based on the synergistic effect of heterostructure terminal pairing and transient polaritons, the picosecond-level response speed and the switch ratio exceeding four orders of magnitude are achieved. Under the optimal design, the device can achieve the laser cooling effect on the emitting electrode in a single switching period, and an innovative solution is provided for nanoscale dynamic thermal management.

The invention relates to an active electromagnetic metasurface for realizing a programmable topological polariton waveguide. The metasurface is formed by periodically extending basic function units and variable capacitance diodes in a two-dimensional plane; the basic function unit comprises two layers of media, four layers of metal and metalized via holes; by changing the applied bias voltage, reconfigurable topology transmission of the magnetic polarization excimer dispersion topology from an ellipse to a straight line and a hyperbolic curve can be realized; by means of wavefront characteristics under different dispersion topologies, adjustable field channelization and reconfigurable plate focusing functions and programmable topology polariton waveguide design can be realized. The device supports flexible propagation and guide control of surface waves, has the advantages of low dimensionality, real-time response, continuous controllability and high stability, provides an effective platform for active optoelectronic integrated circuit research, facilitates design of a plane integrated high-speed communication assembly, high-resolution imaging and a high-sensitivity sensing positioning system, and has wide application prospects. The method has wide application prospects in the fields of near-field information processing, energy collection and the like.

The invention discloses a photoconductive antenna for reducing a space charge shielding effect, relates to a terahertz transmission technology, and provides a scheme for solving the problems of overhigh shielding voltage and the like in the prior art. The structure comprises a photoconductive substrate, a first electrode arranged on one side of the upper end face of the photoconductive substrate, and a second electrode arranged on the other side of the upper end face of the photoconductive substrate. A gap nano metal array is arranged between the first electrode and the second electrode; the gap nano metal array comprises unit cells which are distributed in an array; the metal sheets in the unit unit cells and / or between the unit unit cells excite local plasmon polaritons to enhance the light field intensity of corresponding areas when irradiated by incident laser. The terahertz photoconductive antenna has the advantages that the nanometer array structure is introduced, a high radiation enhancement area is generated through metal plasmon coupling, the terahertz photoconductive antenna obtains better radiation characteristics, meanwhile, the nanometer array structure is structurally optimized, the distribution condition of carriers in the photoconductive antenna is improved, and space charge shielding voltage is effectively reduced.

The invention discloses a band-pass filter based on an artificial surface plasmon polariton structure and a design method thereof, a metal structure of the band-pass filter comprises an polariton structure region, the polariton structure region is provided with a plurality of plasmon polariton grooves, and the plurality of plasmon polariton grooves are arranged at intervals along a first direction; the depth direction of the plasmon polariton grooves is perpendicular to the first direction, the lengths and the widths of the plasmon polariton grooves are the same, and the multiple plasmon polariton grooves are formed in the same side of the polariton structure; the split resonant rings are arranged on the dielectric substrate, and the multiple split resonant rings are arranged close to the metal structure. Due to the fact that the multiple plasmon polariton grooves formed in the polariton structure and arranged at intervals in the first direction can form the artificial surface plasmon polariton structure, the band-pass filter based on the artificial surface plasmon polariton structure has the high inhibition capacity for harmonic waves of the band-pass frequency, and the band-pass filter based on the artificial surface plasmon polariton structure has the good inhibition capacity for the harmonic waves of the band-pass frequency.

An optical gate device may have one or more optical cavities. The optical cavity may have an embedded optically-active material providing strong light-matter coupling. A pump input allows application to of a pulsed optical pump beam the optically-active material. The pump beam is absorbed by the optically active material to form an exciton-polariton condensate which emits light. The optical gate device may have an input waveguide to input a seed signal to the optical cavity. The optical gate device may include an output waveguide to output of an optical signal at a wavelength corresponding to a resonant mode of a the cavity. The device may operate in a manner such that, when the pump beam is applied to the pump input, an optical output signal is selectively provided in the output waveguide, via the input of the a seed signal and light emitted by the exciton-polariton condensate.

The invention provides a plasmon copper-based nano material, a preparation method thereof and application of the plasmon copper-based nano material in a carbon dioxide capture-conversion system.The preparation method comprises the steps that a copper nanowire modified by polytetrafluoroethylene is adopted as a plasmon catalyst, carbon dioxide is efficiently adsorbed and captured through organic amine, and under excitation of polarized light with the specific wavelength, the carbon dioxide is converted into the plasmon copper-based nano material. And efficient carbon dioxide electroreduction is realized. Compared with the prior art, carbon dioxide capture and photoelectrocatalysis carbon dioxide conversion of the plasmon copper-based nano material are combined, rapid capture and release of carbon dioxide are achieved, and the Faraday efficiency of reducing carbon dioxide into methane reaches up to 90% or above. The invention constructs a carbon dioxide capture-conversion system with industrial application potential, and provides a new path for realizing energy conservation and emission reduction.

Disclosed herein is a microcavity and patterns thereof comprising a photoluminescent material positioned between two reflectors, wherein the photoluminescent material comprises a cationic molecular dye, a macrocyclic anion receptor host, and an anion embedded within the macrocyclic anion receptor host and methods of making and using the same.

The invention discloses a high-selectivity broadband cavity band-pass filter for low-orbit satellite communication and a manufacturing method, particularly relates to the technical field of communication, and solves the problems that in the prior art, due to the fact that periodic metal strips are loaded on a micro-strip transmission line and a substrate integrated waveguide, the structural loss is large; a periodic unit is loaded in a metal waveguide to form the characteristics that the lower stop band of the artificial surface plasmon is poor in selectivity and the metal waveguide is not flexible enough; and existing metal waveguide artificial surface plasmon polaritons cannot effectively achieve the purpose that the upper stop band is wide enough. According to the technical scheme, on the basis of an artificial surface plasmon polariton band-pass filter with an inverted-T-shaped groove etched in a center ridge, a pair of symmetrical folding groove structures is etched to form a 1 / 4 wavelength resonator, the 1 / 4 wavelength resonator is used for generating a zero point in a lower stop band, the selectivity of the band-pass filter is improved, and meanwhile the wide stop band characteristic is achieved by controlling the length of a grating; according to the invention, the loss is lower, and a wider stop band is realized.

This invention relates to a pattern-reconfigurable antenna based on artificial surface plasmon polaritons (SSPPs), belonging to the field of antenna technology. The antenna includes a coplanar waveguide feed line, a transition structure, a reconfigurable SSPP waveguide, and periodic radiating elements. The reconfigurable SSPP waveguide modifies the dispersion characteristics by adding a varactor diode to a traditional SSPP element and adjusting the capacitance value using a bias circuit. The periodic radiating elements are elliptical patches with rectangular slots, coupled to the reconfigurable SSPP waveguide to radiate electromagnetic waves. This invention solves the problems of single radiation direction in traditional antennas and low gain in existing reconfigurable antennas. It achieves fixed-frequency beam scanning (maximum 23°) and frequency beam scanning (maximum 90°) in the 11.5GHz-15GHz frequency band, with gains greater than 9dBi (maximum 11.1dBi), expanding the detection range and increasing the detection distance, making it suitable for fields such as UAV detection.

The invention discloses an artificial surface plasmon transmission line structure for realizing ultra-wideband crosstalk suppression. An interdigital structure is introduced into the design of a transmission line, so that the dispersion characteristic of electromagnetic waves is effectively regulated and controlled, and the coupling effect of adjacent channels is inhibited. The transmission line structure comprises an artificial surface plasmon transmission line, a matching transition structure and a microstrip line. The microstrip line is arranged at the tail end of the transmission line and is connected with the artificial surface plasmon transmission line through a matching transition structure, the artificial surface plasmon transmission line comprises a plurality of cascaded artificial surface plasmon units, and part of the artificial surface plasmon units adopt interdigital structures. According to the transmission line, while the compact structure and the simple design are kept, the excellent performance of low crosstalk, miniaturization and broadband is realized, and the stability of high-frequency signal transmission and the system integration efficiency are effectively improved.

The invention discloses a steep transition type artificial surface plasmon low-pass filter based on a spur line structure, and belongs to the technical field of low-pass filters, the steep transition type artificial surface plasmon low-pass filter comprises a dielectric substrate, a coplanar waveguide is arranged on the upper surface of the dielectric substrate, and a spur line unit array is arranged on the lower surface of the dielectric substrate; the coplanar waveguide comprises a center conductor belt and grounding belts symmetrically distributed on the two sides of the center conductor belt, L-shaped groove unit arrays are etched on the grounding belts, the L-shaped groove unit arrays are distributed in the length direction of the coplanar waveguide, and each L-shaped groove unit array comprises a filtering unit and transition units symmetrically arranged at the two ends of the filtering unit. The spur line unit array is aligned with the center of the filtering unit on a projection plane perpendicular to the wave propagation direction. According to the steep transition type artificial surface plasmon low-pass filter based on the spur line structure, adjustable dispersion cut-off frequency and sharp transition from a pass band to a stop band are achieved, and meanwhile the structure is simple and miniaturized.

The gallium nitride-based compound semiconductor laser chip comprises a substrate, a lower limiting layer, a lower waveguide layer, an active layer, an upper waveguide layer and an upper limiting layer which are sequentially arranged from bottom to top, a hyperbolic polariton layer is arranged between the lower limiting layer and the lower waveguide layer, and breakdown field intensity distribution in the hyperbolic polariton layer is designed. And a breakdown field strength relationship among the lower limiting layer, the lower waveguide layer and the hyperbolic polariton layer. The performance of the semiconductor laser chip can be improved.

The application relates to an active electromagnetic metasurface for realizing programmable topology polariton waveguide, which is composed of basic functional units combined with varactor diodes and periodically extended in a two-dimensional plane; the basic functional unit comprises two layers of dielectric, four layers of metal and a metallized via; by changing the applied bias voltage, reconfigurable topology transmission of magnetic polariton dispersion topology from ellipse to straight line and hyperbola can be realized; by means of wavefront characteristics under different dispersion topologies, adjustable field channeling and reconfigurable flat panel focusing functions and programmable topology polariton waveguide design can be realized. The application supports flexible propagation and guiding manipulation of surface waves, has the advantages of low dimension, real-time response, continuous controllability and high stability, provides an effective platform for active optoelectronic integrated circuit research, is beneficial to the design of planar integrated high-speed communication components, high-resolution imaging and high-sensitivity sensing and positioning systems, and has wide application prospects in the fields of near-field information processing and energy collection.

The present invention discloses a closed-form estimation method for multi-dimensional parameters of a MIMO radar based on the principle of orthogonality of polariton spaces, mainly solving the problem of multi-dimensional parameter estimation under the model error of the transceiver array in the existing method based on a polarimetric MIMO radar. The implementation steps are as follows: based on array measurements, obtain the horizontal and vertical polarization sampling matrices of the transceiver array; based on the measured sampling matrices of the transceiver array, establish a signal model for the polarimetric MIMO radar; perform matched filtering processing on the received signal; separate and decouple the multi-dimensional parameters of the signal after the matched filtering processing; reduce the multi-dimensional parameter estimation problem to a direction-of-arrival estimation problem, and solve the direction-of-arrival based on the covariance matrix of the received array output after the matched filtering processing; solve the estimation of the polarization parameters. Based on the principle of orthogonality of polariton spaces, the present invention provides an effective solution for closed-form estimation of multi-dimensional parameters of a polarimetric MIMO radar with arbitrary multi-polarization configurations considering the model error of the transceiver array, and can be used for radar target detection and positioning.

The invention discloses an optical transparent ultra-wide-angle microwave absorber based on a two-dimensional and three-dimensional mixed structure, which comprises a two-dimensional structure, a three-dimensional structure and a floor, and is characterized in that the two-dimensional structure is composed of windmill-shaped ITO transparent conductive film glass, a first PET layer and a first PMMA layer; the three-dimensional structure is composed of two wave absorbers based on resonance and two wave absorbers based on artificial surface polaritons; the two wave absorbers based on resonance are different in size and resistance value of printing sheet resistance, and the two wave absorbers based on artificial surface polaritons are different in size and resistance value of printing sheet resistance; the floor is composed of square ITO transparent conductive film glass, a second PET layer and a second PMMA layer. The optical transparent wave absorber with the ultra-wide-angle wave absorption function is achieved, the electromagnetic stealth problem under the double-station radar detection technology is solved, and higher-performance stealth and strong enemy defense can be assisted.

The present invention provides a beam reconfigurable antenna based on artificial surface plasmon polaritons and a wireless communication system in the technical field of reconfigurable antennas, including a dielectric substrate, a metal ground, a reconfigurable feeding network, and an antenna radiation body. The metal ground and the antenna radiation body are connected to the dielectric substrate, and the reconfigurable feeding network is located at one end of the antenna radiation body. By controlling the input voltage of the RF port, the bias state of the PIN diodes in the reconfigurable feeding network can be controlled, so as to adjust the feeding mode of the antenna radiation body, thereby realizing the conversion of the working mode of the antenna radiation body, that is, the antenna can be switched between a horizontal beam and a vertical beam. The present invention realizes the beam reconfigurable performance of the SSPPs antenna, and at the same time maintains the beam stability and high gain of the antenna in each mode within the working frequency band. The antenna has the advantages of simple structure, low cost, stable performance, and can be widely applied in wireless communication, etc.

The invention provides a leaky-wave antenna unit and an antenna device, and belongs to the technical field of antennae, and the leaky-wave antenna unit comprises a dielectric substrate which comprises a first side and a second side opposite to the first side; the artificial surface plasmon polariton (SSPP) structure comprises a transmission line located on the first side and a metal layer located on the second side, the metal layer is configured to be grounded, and the transmission line is configured to be connected with a feed part; wherein the transmission line is provided with a plurality of holes arranged periodically, the metal layer is provided with at least one defect groove penetrating through the metal layer, and the orthographic projection of the defect groove on the dielectric substrate is overlapped with the orthographic projection of the holes on the dielectric substrate.

The invention discloses a biphenyl vinyl derivative molecule (BDAVBi) and a synthesis method thereof, a preparation method of a novel organic assembled film (OAF), and a single-emission-base color narrow-band organic polariton light-emitting diode of the novel assembled film and a preparation method of the single-emission-base color narrow-band organic polariton light-emitting diode. At present, an organic light-emitting diode (OLED) is expected to be used for preparing multicolor, narrow-band emission and high-definition displays. However, it is very challenging to achieve a wide color gamut and high fidelity strong color purity in accordance with the BT.2020 standard. However, by embedding the organic assembly film into a microcavity OLED, efficient organic polariton electroluminescence can be generated. The polariton OLED (POLED) disclosed by the invention has the following advantages: low turn-on voltage (about 2 V), emission of six different narrowband colors (from blue to red, the full width at half maximum being less than 26 nm), maintenance of stability at a current density up to 118 A / cm < 2 >, and external quantum efficiency (EQE) up to 1.98% and internal quantum efficiency (IQE) close to 100% at a current density of 89 A / cm < 2 >. Wide color gamut and high color purity can be achieved by controlling photon components. The innovative invention is expected to promote the realization of an electrically driven organic solid-state laser (EDOSSLS) integrated into a single-component system, and is applied to the field of display and illumination of the tip.

The invention relates to a directional diagram reconfigurable antenna based on artificial surface plasmon polaritons, and belongs to the technical field of antennas. The antenna comprises a coplanar waveguide feeder line, a transition structure, a reconfigurable SSPP waveguide and a periodic radiation unit. According to the reconfigurable SSPP waveguide, a variable capacitance diode is added on a traditional SSPP unit, and a bias circuit is matched to regulate and control a capacitance value so as to change dispersion characteristics; the periodic radiation unit is an elliptical patch with a rectangular slot, and is coupled with the reconfigurable SSPP waveguide to radiate electromagnetic waves. According to the reconfigurable antenna, the problems that a traditional antenna is single in radiation direction and an existing reconfigurable antenna is low in gain are solved, fixed-frequency beam scanning (23 degrees to the maximum) and frequency beam scanning (90 degrees to the maximum) are achieved within the frequency band of 11.5-15 GHz, the gain is larger than 9 dBi (11.1 dBi to the maximum), the detection range can be expanded, the detection distance can be increased, and the reconfigurable antenna is suitable for the fields of unmanned aerial vehicle detection and the like.

The utility model discloses an exciton polaron laser based on open microcavity, including casing, piezoelectric displacement platform, upper DBR mirror and lower DBR mirror, the cavity with one -way opening has in casing, upper DBR mirror is assembled in the cavity, and is close to the opening, lower DBR mirror is provided with exciton gain dielectric layer, piezoelectric displacement platform can lift and lower the assembly in the cavity far from the opening one side, lower DBR mirror is fixed in piezoelectric displacement platform, to make lower DBR mirror close or far from upper DBR mirror, and piezoelectric displacement platform is used for fine adjustment lower DBR mirror's displacement distance, such can respectively coarse adjustment and fine adjustment to the microcavity cavity length between upper DBR mirror and lower DBR mirror, and then guarantee the strong coupling state between exciton and cavity photon, after continuing to increase the light power, can form polarized plasmon condensation, also can conveniently regulate and control the energy difference between cavity photon and exciton.

The present invention provides a method for characterizing the real-space characteristics of a two-dimensional polariton, comprising the following steps: S1: placing a sample to be tested on a SiO2 / Si substrate, so that an edge of the sample to be tested is at 45° with the edge of a cantilever arm of a scattering type near-field optical microscope; S2: scanning the needle tip of the scattering type near-field optical microscope along an edge perpendicular to the sample to be tested, sequentially changing the wavelength of an excitation laser light source, and obtaining a near-field real-space image by scanning the scattering type near-field optical microscope; S3: performing Fourier transform processing on the near-field real-space images obtained in step 2 one by one, and obtaining the real part k′ of the wave vector of the hybrid polariton mode respectively. p and propagation length L p ; S4: According to the formula, the wave vector k′ of the hybrid polaritons at each wavelength is obtained p and L p The present invention breaks through the diffraction limit through a scattering near-field optical microscope, explores the physical phenomenon of the interaction between light and matter in the near-field region, and presents the real-space characteristics of two-dimensional polaritons.

The application discloses a monolayer polariton sequence double-parameter terahertz device and a preparation method thereof, and relates to the technical field of terahertz devices. The monolayer polariton sequence double-parameter terahertz device comprises a dielectric substrate, metal electrodes and sequence detection materials. The metal electrodes are at least three in number, and the number of the sequence detection materials is one less than the number of the metal electrodes. The multiple metal electrodes are arranged in sequence along a first direction on the dielectric substrate. The material of the sequence detection materials is a monolayer two-dimensional crystal. The sequence detection materials comprise multiple sequence strips and connecting parts arranged at two ends of the sequence strips. The sequence strip is formed by sequentially connecting multiple sequence units of the same shape. The multiple sequence strips are distributed in sequence along a second direction on the dielectric substrate. The shapes of the sequence units of each sequence detection material are different. The connecting parts arranged at the two ends of each sequence detection material are respectively connected with two adjacent metal electrodes in the first direction. The first direction and the second direction are perpendicular to each other.

The invention discloses a tunable one-way and two-way microwave notch filter and a design method. The filter has one-way and two-way filtering functions. The structure of the device mainly comprises an artificial surface plasmon polariton planar waveguide and a ferrite yttrium iron garnet microwave resonator, a circular polarization spin polarization microwave field with a spin-momentum locking characteristic is generated at a specific position in the planar waveguide, a magneton mode generated in the microwave resonator and the spin polarization microwave field are subjected to spin selective coupling, and under the critical coupling condition, microwaves input in one direction are completely filtered after passing through magneton, and then are subjected to spin polarization. And the microwaves input in the other direction are completely transmitted, so that the unidirectional filtering function of the microwaves at a specific frequency is realized. And an additional microwave resonator is further loaded, and the bidirectional filtering function can be realized by expanding the experimental configuration. The invention does not need complex structural design and strict parameter regulation and control, and provides a simpler, more convenient and more flexible method to realize the multifunctional microwave notch filter.

The invention discloses an SSPP unit structure with multiband negative group delay, and belongs to the technical field of microwaves. According to the method, the multi-band negative group delay is innovatively generated on the basis of the artificial surface plasmon polaritons (SSPP), and the multi-band negative group delay is generated on the basis of the SSPP. The structure is provided with a dielectric substrate, a straight conductor strip is etched on the dielectric substrate, and metal sideband folding spiral rings are arranged on two sides of the straight conductor strip to form an SSPP unit structure. The system has the characteristics of multiband, negative group delay and high integration. The multiband negative group delay SSPP unit has a wide application prospect and a huge market value in the fields of 5G communication, imaging systems, vehicle-mounted radar communication, satellite navigation and the like.

The invention relates to the technical field of semiconductors, and discloses an infrared detector and a preparation method thereof, a photoelectric detection device and an infrared imaging system, and the infrared detector comprises a long-wave infrared detection layer and a target microstructure formed on the first side of the long-wave infrared detection layer. Wherein the long-wave infrared detection layer is made of tellurium cadmium mercury; the target microstructure comprises at least two rectangular substructures; the target microstructure is coupled with the target incident light to excite the surface phonon polaritons, so that the energy of the target incident light is localized at the boundary of the target microstructure and the long-wave infrared detection layer to enhance the photoelectric coupling capability of the long-wave infrared detection layer. The beneficial effects are that the target microstructure comprising at least two rectangular substructures is formed on the first side of the long-wave infrared detection layer, so that the absorption competition between the microstructure and the detection layer is effectively inhibited, and the photoelectric coupling capability of the detection layer is improved. And finally, the responsivity, the absorptivity and the polarization detection capability of the infrared detector are remarkably improved.

5 This invention provides an apparatus for monitoring chemical reactions, the apparatus comprising at least one layer adapted to excite surface phonon polariton, at least one layer adapted to excite localized surface plasmon polariton, and a substrate, wherein the layers are stacked alternately on the substrate, and are further adapted to exhibit a plasmon-10 phonon coupling mode upon exposure to radiation for vibrational fingerprinting of molecules from the monitored chemical reactions based on their refractive index. The invention further provides a system and method involving the apparatus. 1 for publication. 15