Atomic resonance filters

The atomic resonance filter (ARF) is an ultranarrowband (Q approximately 10/sup 5/-10/sup 6/), large-acceptance-angle, isotropic optical filter. These features make the device ideally suited for applications in which weak laser signals are detected against a continuum background. The filter properti...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 1988-07, Vol.24 (7), p.1266-1277
Main Author: Gelbwachs, J.A.
Format: Article
Language:English
Subjects:
Active filters
Atom optics
Atomic beams
Electromagnetic wave absorption
Energy conversion
Exact sciences and technology
Filters, zone plates, and polarizers
Fundamental areas of phenomenology (including applications)
Laser theory
Optical elements, devices, and systems
Optical filters
Optics
Physics
Resonance
Signal detection
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Summary:The atomic resonance filter (ARF) is an ultranarrowband (Q approximately 10/sup 5/-10/sup 6/), large-acceptance-angle, isotropic optical filter. These features make the device ideally suited for applications in which weak laser signals are detected against a continuum background. The filter properties arise from the physical processes of absorption, emission, and internal energy conversion in atomic vapors. The characteristics of the ARF are described and the underlying physics that governs the operation is discussed. Representative examples of passive, active, and IR filters are presented. A metastable ARF that offers improved solar background-limited performance by filtering signals at Fraunhofer wavelengths is described.< >
ISSN:0018-9197
1558-1713
DOI:10.1109/3.963