太拉赫兹光发生装置

Terahertz wave generation apparatus

Abstract

The invention discloses a terahertz wave generation apparatus. The terahertz wave generation apparatus includes a first non-linear optical crystal 3 on which first laser L1 and second laser L2 from laser generation means 2 are incident to generate terahertz wave TH1. The laser generation means includes a second non-linear optical crystal 7 on which laser having the same wavelength as that of the second laser is incident to generate idler light L1 including a plurality of wavelengths, and makes the idler light L1 generated from the second non-linear optical crystal incident on the first non-linear optical crystal as the first laser L1, to generate terahertz wave including a plurality of wavelengths from the first non-linear optical crystal 3, and wavelength selection means including a transmission section which transmits an idler light having the specific wavelength in the idler light including the plurality of wavelengths can be provided, as needed. Thus, terahertz wave having a high output power and including a plurality of wavelengths can be obtained, and the wavelength selection means easily obtains a required terahertz wave having the specific wavelength.
本发明提供一种太拉赫兹光发生装置。具备被入射来自激光生成单元(2)的第1激光(L1)和第2激光(L2)发生太拉赫兹光(TH1)的第1非线性光学结晶(3)。激光生成单元具有通过被入射与第2激光相同的波长的激光发生包含多个波长的无效光(L1)的第2非线性光学结晶(7),通过使从该第2非线性光学结晶发生的无效光作为第1激光(L1)入射到第1非线性光学结晶,从该第1非线性光学结晶发生包含多个波长的太拉赫兹光。根据需要,能够设置具有仅使包含多个波长的无效光中的特定的波长的无效光通过的光透射部的波长选择单元。能够得到输出大的包含多个波长的太拉赫兹光。另外,易于通过波长选择单元得到必要的特定的波长的太拉赫兹光。

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