Ultranarrow bandwidth nonlinear Faraday optical filter at rubidium D2 transition

被引：16
作者：
Zhuang, Wei [1 ]
Hong, Yelong [1 ]
Gao, Zhiwen [1 ]
Zhu, Chuanwen [1 ]
Chen, Jingbiao [1 ]
机构：
[1] Peking Univ, Sch Elect Engn & Comp Sci, State Key Lab Adv Opt Commun Syst & Network, Beijing 100871, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2014年 / 12卷 / 10期
基金：
中国国家自然科学基金;
关键词：
ATOMIC FILTER; INDUCED-DICHROISM; BRILLOUIN-LIDAR; LINE; VAPOR; NM; TEMPERATURE; POTASSIUM; RECEIVER; SYSTEM;
D O I：
10.3788/COL201412.101204
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate a narrowband optical filter which operates on the 5(2)S(1/2) to 5(2)P(3/2) transition at 780 nm in rubidium vapor based on optical-pumping-induced dichroism combined with Faraday anomalous dispersion effects. Its peak transmission is 18.4(2)% at the 5(2)S(1/2), F = 2 to 5(2)P(3/2), F' = 1, 3 crossover transition, whereas at the 5(2)S(1/2), F = 2 to 5(2)P(3/2), F' = 2, 3 crossover transition the transmission is 18.6(2)%. Both transitions have a bandwidth (full-width at half-maximum of peak transmission) as narrow as 24.5(8) MHz, which is remarkably improved compared with the narrowest bandwidth as we know. This technique can also be applied to other alkali atoms.
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页数：4
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