System for controlling femtosecond laser two-dimensional infrared spectroscopy device

A technology of femtosecond laser and infrared spectroscopy, which is applied in the system field of controlling femtosecond laser two-dimensional infrared spectroscopy devices, to achieve the effect of convenient experimental operation

Inactive Publication Date: 2013-05-08
INST OF CHEM CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Two-dimensional infrared spectroscopy is an emerging means of molecular dynamic structure detection. There is no commercialized instrument at present. The core optical path and the entire set of equipment need to be built in the laboratory.

Method used

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  • System for controlling femtosecond laser two-dimensional infrared spectroscopy device
  • System for controlling femtosecond laser two-dimensional infrared spectroscopy device

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Embodiment Construction

[0011] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0012] like figure 1 As shown, the femtosecond laser two-dimensional infrared spectroscopy device involved in the present invention includes a femtosecond laser 1, a spectroscopic device 2, several reflectors 3, several diagonal reflectors 4, a total reflector 5, and a focusing mirror 6 , a sample pool 7, a spectrometer 8 (the spectrometer of the present invention uses a monochromator 8) and an infrared array detector 9. Each diagonal reflector 4 is fixedly arranged on an electric translation stage, and each electric translation stage can drive the corresponding angular reflector 4 to move back and forth to change the optical path; The pulsed laser light is sent to the beam splitting device 2. The beam splitting device 2 divides the femtosecond laser into several beams and sends it to each mirror 3. The light reflected by each mirror 3 is vertically ...

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Abstract

The invention relates to a system for controlling a femtosecond laser two-dimensional infrared spectroscopy device. The system is characterized by comprising a computer and a data collection card, wherein the data collection card receives a multi-channel pulse spectrum signal via an infrared array detector, and transmits to the computer; a control system is arranged inside the computer and comprises an electric translation stage control unit, a femtosecond pulse integration control unit, a monochromator control unit, a data analysis treatment unit and a signal real-time display unit; the electric translation stage control unit controls the electric translation stage to move according to set parameters; the monochromator control unit controls an input light slit, the grating type and a center wavelength of a monochromator; the femtosecond pulse integration control unit integrates the collected signal, accumulates for a plurality of times, and then respectively transmits to the data analysis treatment unit and the signal real-time display unit; the data analysis treatment unit processes the received spectrum signal; and the signal real-time display unit is used for displaying the signal output by the femtosecond pulse integration control unit in real time. The system can be widely applied to a control process of the femtosecond laser two-dimensional spectroscopy device.

Description

technical field [0001] The invention relates to a system for controlling an infrared spectroscopy device, in particular to a system for controlling a femtosecond laser two-dimensional infrared spectroscopy device. Background technique [0002] The femtosecond laser two-dimensional infrared spectroscopy technology that has emerged in recent years is the two-dimensional Fourier transform of the stimulated vibration photon echo response generated by the molecular system under the action of three ultrafast infrared laser pulses in the time domain. expression in the frequency domain. As a novel cutting-edge spectroscopy method, it has the ability to determine the dynamic structure of condensed phase molecules with femtosecond time resolution. Two-dimensional infrared spectroscopy is an emerging means of molecular dynamic structure detection. There is no commercialized instrument at present, and its core optical path and the entire set of devices need to be built in the laborator...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/25G01N21/35
Inventor 王建平杨帆马肖燕于鹏云
Owner INST OF CHEM CHINESE ACAD OF SCI
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