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  • Concerto HeCd Replacement Laser
Oct 2013
Power Technology Inc.Request Info
LITTLE ROCK, Ark., Oct. 28, 2013 — Power Technology Inc. has developed the Concerto, a 442-nm solid-state HeCd replacement laser that delivers up to 150 mW of actively stabilized single-frequency light with a spectral bandwidth <5 MHz. 

The instrument has a mean time before failure of >12,000 h, compared with a typical HeCd laser, which requires retubing every 3000 h, depending on the original power output. Typical coherence length is 100 m.

Applications include holography, security printing, spectroscopy, thin-film analysis, flow visualization, optical data storage and semiconductor inspection.


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The optical recording of the object wave formed by the resulting interference pattern of two mutually coherent component light beams. In the holographic process, a coherent beam first is split into two component beams, one of which irradiates the object, the second of which irradiates a recording medium. The diffraction or scattering of the first wave by the object forms the object wave that proceeds to and interferes with the second coherent beam, or reference wave at the medium. The resulting...
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