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Soft matter comprehensive measuring device based on novel hybrid optical tweezers

A comprehensive measurement and soft matter technology, which is applied in the field of soft matter comprehensive measurement devices based on new hybrid optical tweezers, can solve the problems that holographic light cannot be realized at the same time

Inactive Publication Date: 2012-06-27
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
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Problems solved by technology

[0003] The existing optical tweezers technology cannot realize both holographic optical tweezers and high-precision single optical tweezers

Method used

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  • Soft matter comprehensive measuring device based on novel hybrid optical tweezers
  • Soft matter comprehensive measuring device based on novel hybrid optical tweezers
  • Soft matter comprehensive measuring device based on novel hybrid optical tweezers

Examples

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specific Embodiment

[0037] This specific embodiment is a preferred embodiment of the basic embodiment, specifically as follows:

[0038] In this embodiment, the beam waist diameter of the exit spot of the laser 1 is 2 mm. The first plano-convex lens 2 and the second plano-convex lens 3 respectively adopt plano-convex lenses with focal lengths of 60mm and 250mm and diameters of 25.4mm and 50.8mm to form the first telescope, and the beam expansion ratio of the telescope is four times. The diameter of the expanded beam is about 8mm. The second telescope consists of two identical plano-convex lenses with focal lengths and diameters of 250 mm and 50.8 mm, respectively.

[0039] The aperture of the first plano-convex lens is selected as 25.4 mm (1 inch), and the apertures of the second plano-convex lens, the third plano-convex lens and the fourth plano-convex lens are all selected as 50.8 mm (2 inches).

[0040] In this embodiment, in the high-precision single optical tweezers mode, the first reversi...

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Abstract

The invention discloses a soft matter comprehensive measuring device based on novel hybrid optical tweezers, comprising a laser, a first planoconvex spotlight, a second planoconvex spotlight, a first reversible reflector, a first reflector, a liquid crystal spatial light modulator, a second reversible reflector, a third planoconvex spotlight, a fourth planoconvex spotlight, a first dichroic mirror, a microscope objective, a two-dimensional electric platform, a halogen lamp, a microscope imaging tube mirror, a second dichroic mirror, a position detector imaging lens, a position detector, a camera and a computer, wherein the device can effectively work in the modes of high precision single optical tweezers and holographic optical tweezers, and the computer is respectively connected with theliquid crystal spatial light modulator, the camera and a position sensor signal inception system through signal lines. According to the invention, the measurement of simultaneous capture operation and interaction of a plurality of particles in liquid phase can be realized, and the measurement of broadband rheology characteristics of a microfluid by using a single particle probe can be realized.

Description

technical field [0001] The invention belongs to the technical field of soft matter complex fluids, in particular to a soft matter comprehensive measurement device based on a novel hybrid optical tweezers. Background technique [0002] Laser optical tweezers technology has played an important role in single molecule biophysics, soft matter and other fields since its invention. The optical tweezers technology itself has also been continuously improved and developed in these applications, and based on the traditional single optical tweezers, array optical tweezers, vortex optical traps, and time-division multiplexing optical traps have been derived. These optical tweezers play a unique role in their respective scopes of application. For example, the high-precision laser dual optical tweezers has important and extensive applications in the field of single molecules due to its low noise; There are special advantages in the field of arrangement; and vortex optical tweezers have b...

Claims

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Application Information

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IPC IPC(8): G01N15/14G01M10/00G02B21/32G02B21/36
Inventor 任煜轩龚雷高红芳刘伟伟李银妹
Owner UNIV OF SCI & TECH OF CHINA
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