17 June 1996 Electronically tunable narrow-band-pass optical filter for spectral imaging
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We present details of an electronically tunable, narrow bandpass optical filter for applications in optical spectroscopy and spectral imaging. It is based on the combination of an acousto-optic tunable filter and a Fabry- Perot, which we call an acousto-optic Fabry-Perot filter (AOFPF). It offers advantages of a broadband tuning range (several hundred nanometers) and a narrow optical bandpass (subangstrom resolution in visible/NIR). A prototype AOFPF which operates in the visible/NIR wavelength region has been designed, fabricated and tested. Detailed experimental results are presented.
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Duane E. Paulsen, Duane E. Paulsen, Vladimir Pelekhaty, Vladimir Pelekhaty, XiaoLu L. Wang, XiaoLu L. Wang, "Electronically tunable narrow-band-pass optical filter for spectral imaging", Proc. SPIE 2763, Electro-Optical Technology for Remote Chemical Detection and Identification, (17 June 1996); doi: 10.1117/12.243274; https://doi.org/10.1117/12.243274

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