Device and method for amplifying terahertz (THz) wave optical parameters

Abstract

The invention discloses a device for amplifying terahertz (THz) wave optical parameters. The device comprises a pumping source, a THz wave signal source and a THz wave parametric amplifier, wherein the THz wave parameter amplifier comprises a space beam collimating and splitting device and a nonlinear optical crystal, which are sequentially arranged according to a light path; a signal light input port and a pumping light input port are formed in the space beam collimating and splitting device; a THz wave output port is formed in the nonlinear optical crystal; pumping light which is emitted by the pumping source is emitted into the pumping light input port; the THz wave which is emitted by the THz wave signal source is emitted into the signal light input port; the output synthesis light of the space beam collimating and splitting device is emitted to the nonlinear optical crystal; and the THz wave is output through the nonlinear optical crystal. By adoption of the device, the problems of low output power, complicated structure of equipment and high cost of the conventional optical THz source technology are solved. The device has the advantages of high single-pass gain, low amplification noise and high power increase capacity and can be cascaded, and the power raising potential is increasingly enhanced.

Description

technical field [0001] The invention belongs to terahertz wave optical parameter amplification technology, and in particular relates to a terahertz wave optical parameter amplification method and a device thereof. Background technique [0002] Terahertz (THz) radiation generally refers to electromagnetic waves with a frequency between 0.1 THz and 10 THz, and its wave band is between microwave and far infrared. THz electromagnetic radiation has very unique properties. It can penetrate various organisms, dielectric materials, and gas phase substances. These media have rich absorption and dispersion properties in the THz band. By measuring and analyzing the THz signal of the sample, we can obtain information about the material. The material composition and physical, chemical and biological information in. The terahertz frequency domain has important applications in high data rate communication, secure communication, precision guidance and hidden weapon detection. Therefore, t...

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Problems solved by technology

[0004] The present invention aims to provide a terahertz wave optical parameter amplification method and its device to solve the problems of low output power, complex equipment structure and high cost in the existing optical terahertz source technology

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