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  • DPSS Laser

Photonics Spectra
Aug 2009
Oxxius.jpgThe SLIM-473 blue continuous-wave diode-pumped solid-state (DPSS) laser from Oxxius SA emits up to 50 mW at 473 nm. Featuring a monolithic resonator, it offers a transverse mode beam with M2 <1.2, ultralow noise of <0.2% rms and a pointing stability of <10 μrad over 3 °C. It is available in either an OEM version designed for systems integration or in a plug-and-play model for laboratory use. The single-frequency version is suitable for Raman spectroscopy, holography and interferometry.

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...
The study and utilization of interference phenomena, based on the wave properties of light.
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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