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Device and method for testing birefringence of optical material

An optical material and testing device technology, which is applied in the direction of using optical devices, measuring devices, and material analysis by optical means, can solve the problems of insufficient birefringence frequency dispersion characteristics and lack of birefringence temperature dispersion evaluation, etc. Achieve the effect of improving test efficiency and shortening development cycle

Pending Publication Date: 2022-04-12
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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Problems solved by technology

However, most of the existing interference complementary color testing methods can only obtain the birefringence under white light, and cannot fully obtain the frequency dispersion characteristics of the birefringence, and the existing tests lack the temperature dispersion evaluation of the birefringence

Method used

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  • Device and method for testing birefringence of optical material
  • Device and method for testing birefringence of optical material
  • Device and method for testing birefringence of optical material

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Embodiment

[0069] like figure 1 As shown, the optical material birefringence test device includes five systems: multi-wavelength optical path system 10, phase compensation system 20, phase detection and processing system 30, in-situ thickness measurement system 40 and temperature control system 50, as well as dual optical path modules and orthogonal Polarization module, optical path difference supplementary module 21, phase detection module and optical path difference calculation module, fast focus module 41, automatic lifting module 42, and temperature control module 51 are eight modules.

[0070] The multi-wavelength optical path system 10 includes a dual optical path module and an orthogonal polarization module;

[0071] The phase compensation system 20 includes an optical path difference supplementary module 21 to provide optical phase compensation;

[0072] The phase detection and processing system 30 includes a phase detection module and an optical path difference calculation modu...

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Abstract

The invention discloses a device and a method for testing birefringence of an optical material. The device comprises a multi-wavelength light path system, a phase compensation system, a phase detection and processing system and an in-situ thickness measurement system, the multi-wavelength light path system comprises a double-light-path module and an orthogonal polarization module; the phase compensation system comprises an optical path difference supplement module used for optical phase compensation; the phase detecting and processing system comprises a phase detecting module and an optical path difference measuring and calculating module; the in-situ thickness measuring system comprises an automatic lifting module and a rapid focusing module; the method is used for in-situ measurement of optical material sample thickness. According to the microcrystal particle-based birefringence testing device and the microcrystal particle-based birefringence testing method, the birefringence testing efficiency is greatly improved, rapid performance evaluation of novel optical materials such as nonlinear optical crystals and birefringence crystals is facilitated, and the research and development period of the materials is greatly shortened.

Description

technical field [0001] The invention belongs to the technical field of material performance analysis and testing, and in particular relates to a test device and a test method for the birefringence index of optical materials. Background technique [0002] Optical materials generally refer to materials with certain optical properties and functions, and are widely used. At present, there are dozens of types of optical materials, such as optical crystals, optical glasses, optical plastics, and optical fibers. The basis for the application of various optical materials is their unique optical properties, such as refractive index, nonlinear coefficient, light transmission range, etc. Therefore, the development of optical performance characterization equipment and characterization techniques is necessary and urgent. [0003] As one of the important characteristics of anisotropic optical crystals, birefringence is an important basis for the design of optical devices such as polariz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/23G01N21/01G01B11/06
Inventor 龙西法王祖建杨云苏榕冰何超杨晓明
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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