CAJ | 학술논문

从理论上研究了囚禁于两电介质间薄原子蒸汽的频率调制吸收光谱中范德瓦尔斯频移及线型畸变现象,发现在频率调制情形下频移很明显,线型则由对称类色散型转为非对称类吸收型.采用频率调制的方法解决了在很多情形下采用直接法或吸收法不易实现对vdW作用势进行精确测量的难题.
종이론상연구료수금우량전개질간박원자증기적빈솔조제흡수광보중범덕와이사빈이급선형기변현상,발현재빈솔조제정형하빈이흔명현,선형칙유대칭류색산형전위비대칭류흡수형.채용빈솔조제적방법해결료재흔다정형하채용직접법혹흡수법불역실현대vdW작용세진행정학측량적난제.
The frequency modulated (FM) absorption spectroscopy with atom-surface van der Waals coupling of a thin atomic vapor film between two dielectric walls is theoretically investigated. It is found that the frequency shift and the line-shape distortion are apparent in a FM scheme, and the symmetry dispersion-like shape gets weaker, and an unsymmetry absorption-like line-shape appears, due to atom-surface vdW interaction. The FM absorption technique can be used for measuring vdW interaction which is not easy to be achieved in a direct measuring or a pure absorption technique in several cases.