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Dual-Wavelength Laser

Photonics.com
Nov 2014
Coherent Inc.Request Info
 
SANTA CLARA, Calif., Nov. 25, 2014 — Coherent Chameleon DiscoveryA new laser from Coherent Inc. allows simultaneous, multiwavelength excitation of multiple probes and photoactivation for nonlinear microscopy.

The Chameleon Discovery is continuously tunable from 680 to 1300 nm, with a pulse width of 100 fs and power up to 1.4 W. Its secondary output, at 1040 nm, offers 160-fs pulse widths at 1.5 W.

An internal and fully automated group velocity dispersion (GVD) pre-compensator enables the shortest possible pulse width at the sample.

Applications include optogenetics experiments, as well as stimulated Raman scattering (SRS) and coherent anti-Stokes Raman scattering (CARS).


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GLOSSARY
optogenetics
A discipline that combines optics and genetics to enable the use of light to stimulate and control cells in living tissue, typically neurons, which have been genetically modified to respond to light. Only the cells that have been modified to include light-sensitive proteins will be under control of the light. The ability to selectively target cells gives researchers precise control. Using light to control the excitation, inhibition and signaling pathways of specific cells or groups of cells...
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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