Impulsive rotational Raman scattering of N2 by a remote 'air laser' in femtosecond laser filament

Autor:	Ni, Jielei, Chu, Wei, Zhang, Haisu, Zeng, Bin, Yao, Jinping, Li, Guihua, Jing, Chenrui, Xie, Hongqiang, Xu, Huailiang, Cheng, Ya, Xu, Zhizhan
Rok vydání:	2014
Předmět:	Physics - Optics
Druh dokumentu:	Working Paper
DOI:	10.1364/OL.39.002250
Popis:	We report on experimental realization of impulsive rotational Raman scattering from neutral nitrogen molecules in a femtosecond laser filament using an intense self-induced white-light seeding "air laser" generated during the filamentation of an 800 nm Ti: Sapphire laser in nitrogen gas. The impulsive rotational Raman fingerprint signals are observed with a maximum conversion efficiency of ~0.8%. Our observation provides a promising way of remote identification and location of chemical species in atmosphere by rotational Raman scattering of molecules. Comment: 4 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1402.5515 Zobrazit plný text záznamu View this record from Arxiv