Development of double-filtering imaging acousto-optic tunable filter with increased spectral resolution

摘要

The spectral resolution is a key index of evaluating the performance of the designed acousto-optic tunablenfilter (AOTF). We present a special double-filtering method of obviously enhancing the spectral resolution.nWe have discussed the main technique functional in the double-filtering method in detail. It is confirmednthat the double-filtering method can effectively enhance the spectral resolution with good imaging quality.nThis study is significant in the imaging applications of AOTF. © 2008 Optical Society of America