【摘要】 我们研制的小型HCN(氰化氢)激光器,可作为实验室用亚毫米波讯号源,能长时间稳定工作,需要工作气体少.实验中已观察到波长为337μm 及311μm 的激光谱线,最佳输出功率可达4.5mw.更多还原

【Abstract】 A CW HCN laser has been built as a light source for far-infrared measurement.The laser is constructed of glass tube with an inner diameter of 4.8cm,withgold-coated mirrors as the cavity.The active length of laser is about 1.15m.Theoutput coupling is a hole of 4mm diameter on the concave mirror.The length ofcavity is stabilized by three quartz spacers.The laser operates with the mixture ofmethane,nitrogen and helium.The laser lines of wavelength 337μm and 311μm areobserved.Gas mixture of various volume ratios are tested for optimum output andthe output about 4.5mw has been obtained.更多还原