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Wide band time resolution absorption spectrum single measuring device

A time-resolved, absorption spectrum technology, applied in measuring devices, color/spectral characteristic measurement, and material analysis, can solve the problems of complex operation, low signal-to-noise ratio, and high cost, and achieve simple operation, high signal-to-noise ratio, and low cost. low effect

Active Publication Date: 2019-09-24
XIAN UNVERSITY OF ARTS & SCI
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problems of complex operation, high cost and low signal-to-noise ratio of existing wide-band time-resolved absorption spectrum single-measurement devices, the present invention provides a wide-band time-resolved absorption spectrum single-measurement device

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0030] Reference figure 1 The device includes a femtosecond pulse laser, a first beam splitter 1, a photodetector 2, a second beam splitter 3, an optical Kerr gate unit, a detection unit and a pump unit.

[0031] A first beam splitter 1 is provided on the exit light path of the femtosecond pulse laser, and a photodetector 2 is provided on the reflection light path of the first beam splitter 1. A second beam splitter 3 is arranged on the transmission light path of the first beam splitter 1, a pump unit is arranged on the reflection light path of the second beam splitter 3, and an optical Kerr gate unit is arranged on the transmission light path of the second beam splitter 3.

[0032] The optical Kerr door unit includes an optical Kerr door 401 and a first light barrier 402.

[0033] The pump unit includes a first mirror 601, a second mirror 602 arranged on the refl...

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Abstract

The invention relates to a wide band time resolution absorption spectrum single measuring device. A technical problem that an existing wide band time resolution absorption spectrum single measuring device has complicated operation, high cost and a low signal-to-noise ratio is solved. The wide band time resolution absorption spectrum single measuring device especially includes a femtosecond pulse laser, a first beam splitter, a photoelectric detector, a second beam splitter, a light Kerr gate unit, a detecting unit and a pump unit. The first beam splitter is arranged on an emitting light path of the femtosecond pulse laser. The photoelectric detector is arranged on a reflected light path of the first beam splitter, and the second beam splitter is arranged on a transmitted light path of the first beam splitter. The pump unit is arranged on the reflected light path of the second beam splitter, and the light Kerr gate unit is arranged on the transmitted light path of the second beam splitter. The light Kerr gate unit comprises a light Kerr gate. The detecting unit comprises a steady-state continuous light source, a beam shaping system, a first cylindrical mirror group, a sample, a second cylindrical mirror group and a lifting mirror.

Description

Technical field [0001] The invention relates to a time-resolved absorption spectrum device, in particular to a wide-band time-resolved absorption spectrum single measurement device. Background technique [0002] Time-resolved absorption spectroscopy technology is based on pump-detection technology, that is, a laser pulse is used to pump the sample, the sample molecules are pumped to an excited state, and another beam is detected with a certain delay relative to the pump light. The sample is detected by light, and the probe light and the pump light intersect inside the sample to sample the sample. Then, by measuring the probe light passing through the sample, the absorption spectrum characteristic of the sample changes with time delay, that is, the transient absorption spectrum dynamic characteristic. [0003] The broadband time-resolved absorption spectrum single measurement technology refers to the instant single measurement technology of the time-resolved absorption spectrum in w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31
CPCG01N21/31G01N2021/3125
Inventor 贺俊芳赵小侠
Owner XIAN UNVERSITY OF ARTS & SCI