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Fast Scanning Synchronous Luminescence Spectrometer Based on Acousto-Optic Tunable Filters

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Abstract:

A new luminescence spectrometer based on quartz-collinear acousto-optic tunable filters (AOTFs) and capable of synchronous scanning is described. An acousto-optic tunable filter is an electronically tunable optical bandpass filter. Unlike a tunable grating monochromator, an AOTF has no moving mechanical parts, and an AOTF can be tuned to any wavelength within its operating range in microseconds. These characteristics, combined with the small size of these devices, make AOTFs an important new alternative to conventional monochromators, especially for portable instrumentation. The relevant performance of the AOTFs (efficiency, bandwidth, rejection, etc.) is compared with that of typical small-grating monochromator.

Keywords: Fluorescence; Instrumentation and acousto-optic tunable filter; Synchronous luminescence

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702953965830

Affiliations: 1: Advanced Monitoring Development Group, Health Sciences Research Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 2: Advanced Monitoring Development Group, Health Sciences Research Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831; present address: Department of Chemistry, University of Richmond, Richmond, Virginia 23173

Publication date: November 1, 1995

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