High resolution spectroscopy of ammonia in a hollow-core fiber
High resolution spectroscopy of ammonia in a hollow-core fiber
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DOI：
10.1364/oe.16.003976
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发表时间：
2008-03-17
期刊：
影响因子：
3.8
通讯作者：
Petersen, Jan C.
中科院分区：
文献类型：
--
作者：
Cubillas, Ana M.;Hald, Jan;Petersen, Jan C.
研究了空芯光子带隙光纤中氨气v（1）+ v（3）带的频率调制饱和光谱。先前混合的谱线已被解析，并指定了相应的分子跃迁。在不共享共同能级的跃迁之间观察到交叉共振。我们已经测量了线的形状的压力依赖性，并确定了氨的碰撞自增宽系数。氨在1.5 μ m波长范围内的许多吸收线是光通信的潜在频率参考线以及光谱痕量气体监测的候选者。(C)2008年美国光学学会。
We have demonstrated frequency modulation saturation spectroscopy of the v(1) + v(3) band of ammonia in hollow-core photonic bandgap fibers (HC-PBFs). Previously blended lines have been resolved and the corresponding molecular transitions assigned. Cross-over resonances are observed between transitions that do not share a common level. We have measured the pressure dependence of the line shape and determined the collisional self-broadening coefficients for ammonia. The many absorption lines of ammonia in the 1.5 mu m wavelength region are potential frequency references lines for optical communication as well as candidates for spectroscopic trace gas monitoring. (C) 2008 Optical Society of America.