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  • Red Laser

Jan 2011
Necsel Communication and Instrumentation Systems (NCIS)Request Info
PD-LD Inc. has announced a high-power, volume Bragg grating-stabilized multimode 647-nm red laser series. The laser sources enable an increased range of spectroscopic analytical capabilities. Their increased precision and expanded range allow for better characterization of the C-H stretch range in Raman spectroscopy, making the lasers suitable for analyzing many organic compounds and other substances. The series offers high spectral purity, linewidth of <0.1 nm and high optical power. The internal temperature control ensures spectral stability and consistent power over varied operating conditions. Besides Raman spectroscopy, applications include avionics and sensing.


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1. The range of frequencies or wavelengths over which radiations are absorbed or emitted in a transition between a specific pair of atomic energy levels. The full width is determined between half-power points of the line. 2. In a laser, the range of frequencies over which most of the beam energy is distributed.
Raman spectroscopy
That branch of spectroscopy concerned with Raman spectra and used to provide a means of studying pure rotational, pure vibrational and rotation-vibration energy changes in the ground level of molecules. Raman spectroscopy is dependent on the collision of incident light quanta with the molecule, inducing the molecule to undergo the change.  
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