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An optical parameter generator for generating multiple terahertz waves

An optical parameter and generator technology, applied in the application field of terahertz wave technology, can solve the problems of low efficiency and low power, and achieve the effects of reducing output loss, improving utilization efficiency, and increasing optical conversion efficiency

Inactive Publication Date: 2021-04-13
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to provide an optical parameter generator for generating multiple beams of terahertz waves to solve the problems of low power and low efficiency of existing terahertz radiation sources

Method used

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  • An optical parameter generator for generating multiple terahertz waves
  • An optical parameter generator for generating multiple terahertz waves

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, an optical parameter generator for generating multiple beams of terahertz waves includes a pump source 1, a period inversion GaP crystal 3, a first reflector 4 and a second reflector 5; the pump emitted by the pump source 1 Light 2 is vertically incident on the period-inverted GaP crystal 3 along a direction that forms an angle of 45° with the negative direction of the X axis and a direction with a negative direction of 45° with the negative direction of the Y-axis. Total reflection on the Y-Z plane of the crystal 3, then incident on the X-Z plane of the period-inversion GaP crystal 3 for total reflection, and then vertically exit from the surface of the period-inversion GaP crystal 3, the pump light emitted from the period-inversion GaP crystal 3 2 Totally reflected by the first mirror 4 and the second mirror 5 to form the ...

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Abstract

The invention discloses an optical parameter generator for generating multiple beams of terahertz waves, which includes a pump source, a period inversion GaP crystal, a first reflection mirror and a second reflection mirror; The direction of the negative axis at an angle of 45° and the direction of the negative Y axis at an angle of 45° is perpendicular to the period-inverted GaP crystal, and after propagating for a certain distance in the period-inverted GaP crystal, it is on the Y-Z plane of the period-inverted GaP crystal Total reflection, then incident on the X-Z plane of the period inversion GaP crystal for total reflection, and then vertically emerge from the surface of the period inversion GaP crystal, the pump light emitted from the period inversion GaP crystal passes through the first reflector and the second The total reflection of the two mirrors forms the first cycle of the pump light. The terahertz wave is emitted perpendicular to the period inversion GaP crystal, without any coupling output device, which effectively reduces the output loss of the terahertz wave.

Description

technical field [0001] The invention belongs to the application field of terahertz wave technology, and in particular relates to an optical parameter generator for generating multiple beams of terahertz waves. Background technique [0002] Terahertz (THz) wave refers to the frequency between 0.1-10THz (1THz=10 12 Hz) range, between millimeter waves and infrared waves. Terahertz waves have broad application prospects in spectral detection, imaging, remote sensing, communications, biomedicine, and military affairs. So far, there is still a lack of terahertz radiation sources with high power, high efficiency, coherence, tunability, miniaturization, and room temperature operation. GaP crystals have a large second-order nonlinear coefficient, and GaP crystals have a small absorption coefficient for terahertz waves. Therefore, using period-inversion GaP crystals as gain media, high-power terahertz waves can be generated through optical parametric effects. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/35G02F1/39H01S1/00
CPCG02F1/3544G02F1/39G02F1/3548H01S1/00
Inventor 李忠洋袁保合邓荣鑫张红涛谭联李永军袁斌袁胜邴丕彬周玉
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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