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Two-Polarization Synchronous Detection System in Ultrafast Transient Absorption Anisotropy Detection

A transient absorption and anisotropy technology, applied in the measurement of color/spectral characteristics, etc., can solve the problems of inability to synchronize measurement, inaccurate data results, affecting the analysis and interpretation of real signals, etc.

Active Publication Date: 2018-06-12
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0007] In order to solve the problem in the prior art that the inability to measure synchronously leads to inaccurate data results obtained by the final calculation and affect the analysis and interpretation of real signals, the present invention proposes a two-polarization synchronous detection system in ultrafast transient absorption anisotropy detection

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  • Two-Polarization Synchronous Detection System in Ultrafast Transient Absorption Anisotropy Detection

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] Such as image 3 As shown, the polarized detection light is incident on the Glan polarization beam splitter Ⅰ1 for splitting, and the parallel polarized light is incident on the reflector I2 after splitting. The blue polarization beam splitter Ⅱ6 is received by the detector 7; after splitting, the vertically polarized light is incident on the reflector Ⅱ5 through the electric control switch Ⅱ4, and the vertically polarized light is reflected by the reflector Ⅱ5 onto the Glan polarization beam splitter Ⅱ6, and then passes through the Glan polarization beam splitter Ⅱ6. The polarizing beam splitter II6 is received by the detector 7 afterward.

[0017] In the front-end transient absorption experimental system, the polarized detection light is adjusted to 45° polarization, and the horizontal and vertical components of the polarized light play an equal rol...

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Abstract

A two-polarization synchronous detection system in ultrafast transient absorption anisotropy detection belongs to the technical field of laser spectroscopy. The polarized detection light of the present invention is incident on the Glan polarization beam splitting prism I for beam splitting, and the parallel polarized light is incident on the reflector I after the beam splitting. After beam splitting, the vertically polarized light is incident on the reflector II through the electronic control switch II, and the vertically polarized light is reflected on the Glan prism II through the reflector II, and is received by the detector after passing through the Glan prism II.

Description

technical field [0001] The invention relates to a two-polarization synchronous detection system in ultrafast transient absorption anisotropy detection, and belongs to the technical field of laser spectrum measurement. Background technique [0002] [0003] [0004] And γ=cosθ E , so the relationship between the radiation anisotropy and the angular distribution of the transition moments is [0005] The change of anisotropic attenuation can show the dynamic changes of polarons (polarons) produced in the interaction between pigments and proteins in organisms, and reveal the energy transfer pathway and mode between biological protein molecules, which plays an important role in artificially simulating new energy sources. The existing method of measuring polarization anisotropy is to adjust the polarization of the probe light to measure a set of data horizontally in the transient absorption experiment, and then adjust the polarization of the probe light to vertical pola...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/31
Inventor 赵东旭王云鹏王飞王登魁赵斌赵欣石琳琳刘洪珍梅晶晶
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI