Xue X, Tao Z, Sun Q, Hong Y, Zhuang W, Luo B, Chen J, Guo H. Faraday anomalous dispersion optical filter with a single transmission peak using a buffer-gas-filled rubidium cell.
OPTICS LETTERS 2012;
37:2274-2276. [PMID:
22739879 DOI:
10.1364/ol.37.002274]
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Abstract
A Faraday anomalous dispersion optical filter (FADOF) with a single transmission peak is achieved by using a buffer-gas (argon, 2 Torr)-filled rubidium cell. At room temperature, the transmission is 0.2% and the bandwidth of the transmission peak is 0.65 GHz. At a temperature of 63° C, the transmission rises to a maximum of 30.6%, with a bandwidth of 1.41 GHz. This FADOF may replace the use of interference filters or virtually imaged phased arrays in imaging modalities.
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