Polarizer capable of realizing any polarization state modulation and optimization method thereof

An optimization method and polarizer technology, applied in the direction of instruments, scientific instruments, polarization influence characteristics, etc., can solve the problem that the measurement results of the Mueller matrix are greatly affected

Pending Publication Date: 2021-11-09
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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Problems solved by technology

And since the angle of the polarizer is fixed, both methods have only one fixed orientation
However, for the measurement of anisotropic samples, where the orientation change of the anisotropic structure has a great influence on the measurement results of the Mueller matrix

Method used

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  • Polarizer capable of realizing any polarization state modulation and optimization method thereof
  • Polarizer capable of realizing any polarization state modulation and optimization method thereof
  • Polarizer capable of realizing any polarization state modulation and optimization method thereof

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Embodiment Construction

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] DETAILED DESCRIPTION OF THE INVENTION Provides a polarizer capable of achieving any polarization modulation, including: a lighting system, a rotatable polarizing plate and a rotatable 1 / 4 wave plate, wherein the illumination system is used to generate incident light; by polarization The combination of different rotational angles of the sheet and 1 / 4 wave plates, and modulate the incident light into the desired polarized light. By changing the orientation of the polarizing plate, the 1 / 4 wave plate is rotated under each orientation, and the polarization state modulation is achieved. The polarizing plate and the 1 / 4 wave plate are respectively rotated by the corresponding electric precision rotation position. figure 1 The schematic diagram of a Mullet matrix measuring system based on the above-described pronouser according to the present inventi...

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Abstract

The invention discloses a polarizer capable of realizing any polarization state modulation and an optimization method thereof, the polarizer comprises an illumination system, a rotatable polarizing film and a rotatable wave plate, the illumination system is used for generating incident light; and incident light is modulated into required polarized light through combination of different rotation angles of the polaroid and the wave plate. The optimization method comprises the steps that the orientation of the polaroid and the fast axis angle of the wave plate serve as optimization targets, the optimal uniform distribution state of the corresponding polarization state on the Poincare sphere is solved through a potential minimum iteration method, and the state meets the condition of the optimal condition number.

Description

Technical field [0001] The present invention relates to a polarizer capable of achieving any polarization state modulation, and is a polarization optical imaging technology. Background technique [0002] Polarized imaging technology has non-invasive, no damage, and has a wide range of applications in many areas such as biomedicine, marine science in the body of biomedicine, marine science. The polarization imaging method can characterize the microstructure information of the medium. The Mullet matrix is ​​a method of complete polarization attributes that can be characterized by the same self, consisting of sixteen chains. For different types of samples, different methods can be selected from the sixteen chalets of the Mul matrix. The polarization imaging method can be combined with the non-polarized imaging method, and simply upgrade it to the Mulf matrix imaging system on the non-polarization imaging device. [0003] Polarization measurements are done by polarization modulating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/21G01N21/01
CPCG01N21/21G01N21/01G01N2021/0112
Inventor 马辉赵千皓黄彤宇胡峥
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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