A method to realize optical amplification of thz wave without population inversion

Abstract

The invention discloses a method for realizing no-population-inversion light amplification of a THz wave. The method is based on a quantum Zeno effect. The method comprises the following steps: basedon quantum observation principle and Zeno effect, particles are fixed on the ground state energy level by using a light pulse with a high repetition frequency; when being disturbed by an incident THzphoton, the upper energy level particles are transited to the lower energy level through stimulated radiation, and a coherent THz photon which is the same as the incident THz photon is generated; andtherefore, the copy of the THz photon and the multiplication of the photon number are realized, and then the purpose of amplifying the power of the THz wave is achieved. A no-population-inversion amplification way is provided for THz frequency laser light incapable of adopting a traditional three-energy-level or four-energy-level laser amplification method.

Description

technical field [0001] The invention relates to the technical field of high-frequency (2-3 THz) continuous electromagnetic wave power amplification, in particular to a method for realizing THz wave optical amplification without particle number inversion. Background technique [0002] The frequency of the THz wave is between 0.1THz and 10THz (the wavelength is between 0.03mm and 3mm), and the spectrum is between microwave and infrared wave. Although the research on microwave technology and infrared wave technology is very mature, it is located between the two. The research on THz waves is still in its infancy, but because of the superior physical properties of THz waves and the development of corresponding optoelectronic technology, the research on THz waves has become popular in recent years. Technology ported to the THz band. [0003] For example, in the development history of optical communication in the near-infrared band, the invention of optical fiber amplifier plays a...

AI Technical Summary

Problems solved by technology

[0013] Since the realization of the Zeno effect requires high-frequency observations, and the previous laser technology cannot meet this requirement, this method has not been realized and has not been proposed by relevant researchers.

However, with the development of microwave photon technology, pulse light sources with extremely high repetition rates can be produced in the laboratory at present, and it is possible to achieve the high-frequency measurement conditions required for realizing the Zeno effect. Therefore, the present invention proposes a method based on this effect for this effect. Population-inversion-free THz wave amplification method based on quantum Zeno effect

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