Atomic Line Spectral Filters for Neodymium Laser Receivers
WESTINGHOUSE RESEARCH AND DEVELOPMENT CENTER PITTSBURGH PA
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The major efforts of this project were 1 to reassess the technical merits of a Tantalum atomic line filter ALF employing a low vapor density T1C1 and 2 to measure the excited state cesium trapping lifetimes and to derive the self quenching cross sections of excited state cesium atoms. These two separate efforts address alternative approaches to the implementation of an ALF based on metastable T1 atoms, T1 sub m, whose absorption wavelength 535 nm matches the frequency doubled NdBel laser. The first approach uses photodissociation to produce T1 sub m directly from T1C1. The second approach involves resonantly pumping the Cs in a T1-Cs mixture and collisionally transferring energy to the T1 to sustain the required density of T1 sub m.
- Atomic and Molecular Physics and Spectroscopy