Laser radar with atomic vapor ultranarrowband image detectors (UBID)

Statistics – Applications

Scientific paper

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Scientific paper

The basic characteristics, figures of merit and potential applications of laser radar with atomic vapor ultra- narrowband imaging detectors (UBID) are discussed. One of the most important figures of merit of a narrowband imaging spectrometer used in a laser radar is the product of throughput and spectral resolution. The atomic vapor UBID, compared with all known spectral imaging instruments, can potentially have a throughput-resolution product up to a million times greater. It is theoretically shown that despite hyperfine structure, one can have smooth characteristics well-suited for an ultranarrowband resonance ionization image detector (RIID) by choosing an appropriate ionization scheme for Cs atoms using the 894.3 nm line. Recent experiments with a vacuum cell mercury atomic vapor RIID are described.

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