Universal photoelectric test system for tera-hertz spectra

Abstract

The invention discloses a tera-hertz photoelectric characteristic test system capable of realizing multiple test functions on photoelectric characteristics and the like of Fourier spectra, transmittance spectra, reflection spectra and tera-hertz electronic devices by combination of various customized light sources and detectors, light path components selected by a user, and addition of peripheral auxiliary equipment. The tera-hertz photoelectric characteristic test system has the advantages of high signal-to-noise ratio, high resolution, strong expandability, low cost and the like, and can be widely suitable for tera-hertz technical research, new material research, environmental detection and biomedical analysis. In the tera-hertz photoelectric characteristic test system, the light paths, circuits and control of the spectra and photoelectric response test system are subjected to design optimization and systematic integration; compact and reasonable optical, mechanical and vacuum cavity structures are designed; computer controlled accurate mechanical scanning and data acquisition are adopted; and finally the aim of testing and analyzing tera-hertz photoelectric characteristics of materials and core devices such as tera-hertz light sources and detectors by using combination of various light sources and detectors can be fulfilled.

Description

technical field [0001] The present invention relates to a photoelectric test system, in particular to a system for testing terahertz spectrum and capable of testing various terahertz photoelectric characteristics by customizing the combination of light sources and detectors, selecting optical path components by the user, and adding peripheral auxiliary equipment. The invention is widely applicable to terahertz technology research, new material research, environmental detection and biomedical analysis. Background technique [0002] Terahertz wave is an electromagnetic wave with a frequency of 0.3THz-30THz (wavelength about 10μm-1mm, photon energy about 1.2meV-120meV), which is between infrared waves and millimeter waves, and is a very important band in the electromagnetic spectrum. The blackbody radiation at room temperature, the background electromagnetic radiation of the universe, and the vibration and rotation characteristic frequencies of many organic macromolecules in na...

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Problems solved by technology

[0004] In order to overcome the disadvantages of complex equipment, high cost, single function, and poor customizability in the prior art, the purpose of the present invention is to provide a general-purpose terahertz spectrum photoelectric test system, which can flexibly use a variety of different light source and detector combinations , It can be applied to the test and analysis of terahertz photoelectric characteristics of a wide range of materials and devices

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