Generation of Intense THz Pulsed Lasers Pumped Strongly by CO 2 Pulsed Lasers

Autor:	QI Chun-Chao, Cheng Zu-hai
Rok vydání:	2009
Předmět:	Range (particle radiation) Materials science business.industry Terahertz radiation Physics::Optics General Physics and Astronomy Resonance Rate equation Laser law.invention Optics Path length law Optoelectronics Absorption (electromagnetic radiation) business Pulse-width modulation
Zdroj:	Chinese Physics Letters. 26:064201
ISSN:	1741-3540 0256-307X
Popis:	A theoretical method dealing with two intense laser fields interacting with a three-level molecular system is proposed. A discussion is presented on the properties of the solutions for time-independent and time-dependent absorption coefficients and gain coefficient on resonance for strong laser fields, based on analytic evaluation of the rate equations for a homogeneously broadened, three-level molecular system. The pump intensity range can be estimated according to the analytic expression of pump saturation intensity. The effects of pulse width, gas pressure and path length on the energy absorbed from pump light are studied theoretically. The results can be applied to the analysis of pulsed, optically pumped terahertz lasers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0822f6db25d67f29e7ce841633ef83c2 https://doi.org/10.1088/0256-307x/26/6/064201 Zobrazit plný text záznamu