Ultrathin atomic vapor film transmission spectroscopy: analysis of Dicke narrowing structure

• 作 者: 李院院 张彦鹏 甘琛利
• 机 构: Department of Physics Ningxia Guyuan Teachers College Guyuan 756000,Department of Electronic Science
• 出 处: Chinese Optics Letters
• 发表日期: 2005年11期
• 关键词: Dicke dielectric confined comparable excited anisotropic feasible oblique incide

Transmission sub-Doppler spectroscopy with confined atomic vapor film between two dielectric walls is theoretically studied. Because of atoms flying from wall to wall, where they get de-excited, the atom-field interaction time is anisotropic so that the contribution of slow atoms is enhanced, a sub-Doppler transmission spectroscopy (Dicke narrowing effect) can be obtained when the thickness of the film is much small or comparable with the wavelength even at small angle oblique incidence. It is feasible to get a sub-Doppler structure in a new region (L < λ/4) in experiments.

Transmission of sub-Doppler spectroscopy with confined atomic vapor film between two dielectric walls is theoretically studied. Since atom flying from wall to wall, where they get de-excited, the atom-field interaction time is anisotropic so that the contribution of slow atoms is enhanced, a sub-Doppler transmission spectroscopy (Dicke narrowing effect) can be obtained when the thickness of the film is much small or comparable with the wavelength even at small angle oblique incidence. It is feasible to get a sub-Doppler transmission in a new region (L <λ / 4) in experiments.