Low-frequency shift Raman spectroscopy using atomic filters

被引：6

作者：

Xue, Xiaobo ^{[1
,2
,3
]}

Janisch, Corey ^{[4
]}

Chen, Yizhu ^{[4
]}

Liu, Zhiwen ^{[4
]}

Chen, Jingbiao ^{[1
,2
]}

机构：

[1] Peking Univ, State Key Lab Adv Opt Commun Syst & Networks, Sch Elect Engn & Comp Sci, Beijing 100871, Peoples R China

[2] Peking Univ, Ctr Quantum Informat Technol, Beijing 100871, Peoples R China

[3] Beijing Inst Radio Metrol & Measurement, Sci & Technol Metrol & Calibrat Lab, Beijing 100854, Peoples R China

[4] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA

来源：

OPTICS LETTERS | 2016年 / 41卷 / 22期

基金：

中国国家自然科学基金;

关键词：

OPTICAL FILTER; FARADAY FILTER; VAPOR FILTER; SCATTERING;

D O I：

10.1364/OL.41.005397

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A Faraday anomalous dispersion optical filter (FADOF) and an atomic resonant absorption filter are used in tandem to demonstrate a low-frequency shift Raman measurement down to few cm(-1). The FADOF, with an ultralow bandwidth of 0.08 cm(-1) at 780 nm, serves as a bandpass filter, while the rubidium atomic cell acts as a notch filter which has a bandwidth of 0.3 cm(-1). A proof-of-concept study to measure a Raman signal generated from a silica optical fiber is performed, demonstrating a low-frequency measurement of both the Stokes and the anti-Stokes shift down to 3 cm(-1) at an equivalent signal level. These results indicate the prospect for gigahertz - terahertz low-energy Raman spectroscopy based on atomic filters. (C) 2016 Optical Society of America

引用

页码：5397 / 5400

页数：4

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