CAJ | 학술논문

介绍了一种腔内光强增强型凹面光栅选线法的热带连续波CO2激光器的设计及实验参数.在腔内不加CO2热吸收池,采用总气压为1 074.9 Pa、体积分数为13% CO2, 15% N2和72% He的混合气体,放电电流为25 mA的情况下,除了在常规带0001-[1000,0200]Ⅰ,Ⅱ内观察到从R(56)到P(60)的100多条谱线以外,还得到11 μm附近的其它谱线18条,其中0111-0310谱带9条,0111-1110谱带9条.实验发现,当激光器中氦气的比例升高时,激光的输出功率随之下降.每条谱线的腔内单程功率都超过35 W,足够满足大多数腔内光化学研究方面的需要.
개소료일충강내광강증강형요면광책선선법적열대련속파CO2격광기적설계급실험삼수.재강내불가CO2열흡수지,채용총기압위1 074.9 Pa、체적분수위13% CO2, 15% N2화72% He적혼합기체,방전전류위25 mA적정황하,제료재상규대0001-[1000,0200]Ⅰ,Ⅱ내관찰도종R(56)도P(60)적100다조보선이외,환득도11 μm부근적기타보선18조,기중0111-0310보대9조,0111-1110보대9조.실험발현,당격광기중양기적비례승고시,격광적수출공솔수지하강.매조보선적강내단정공솔도초과35 W,족구만족대다수강내광화학연구방면적수요.
The paper describes the design and construction of an intracavity intensity enhanced hot-band CW CO2 laser with the line selected by concave grating. In this laser, using a gas mixture of 13% CO2, 15% N2 and 72% He (volume fraction) at a total pressure of 1 074.9 Pa and a discharge current of 25 mA, more than 100 laser lines are observed from R(56) to P(60) in the regular band 0001-[1000, 0200]Ⅰ,Ⅱ, besides, another 18 lines in 11 μm wavelength region with 9 lines in the 0111-0310 band and 9 lines in the 0111-1110 band, are also observed under the condition of no hot CO2 absorption cell in the cavity. In the experiment, it is found that the laser output power decreases when more helium gas is added to the laser gas mixture. The one-way intracavity power of every line is above 35 W, which is adequate for most intracavity photochemistry.