Theoretical analysis on two-photon absorption spectroscopy in a confined four-level atomic system
Theoretical analysis on two-photon absorption spectroscopy in a confined four-level atomic system作者机构:Institute of Photonics and Photonic Technology Key Laboratory of Photoelectronic Technology of Sha~nxi Province Northwest University Xi'an 710069 China Department of Physics Xi'an University of Arts and Science Xi'an 710065 China Key Laboratory for Physical Electronics and Devices of the Ministry of Education Xi'an Jiaotong University Xi'an 710049 China State Key Laboratory of Transient Optics and Technology Xi'an Institute of Optics and Precision Mechanics Chinese Academy of Sciences Xi'an 710068 China
出 版 物:《Chinese Optics Letters》 (中国光学快报(英文版))
年 卷 期:2009年第7卷第7期
页 面:640-642页
核心收录:
学科分类:07[理学] 070203[理学-原子与分子物理] 0702[理学-物理学]
基 金:supported by the National Natural Science Foundation of China (No. 10874139) the Major Program of Science Foundation of Xi’an University of Arts and Science
主 题:Absorption Atomic spectroscopy Data processing Light absorption Luminescence of organic solids Multiphoton processes Optical instruments Optical materials Photons
摘 要:We investigate theoretically two-photon absorption spectroscopy modified by a control field in a confined Y-type four-level system. Dicke-narrowing effect occurs both in two-photon absorption lines and the dips of transparency against two-photon absorption due to enhanced contribution of slow atoms. We also find that the suppression and the enhancement of two-photon absorption can be modified by changing the strength of the control field and the detuning of three laser fields. This control of two-photon absorption may have some applications in information processing and optical devices.