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Tunable Diode Lasers? Or, 609.5nm?

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Nov 24, 2007
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I'm doing an experiment with SPPs (Surface Plasmon Polaritons) on a metallic hydride, coupling the beam to the surface with a BK7 prism. I'm needing either a tunable laser that can include the range from 635nm to 609nm, or alternately, a 609.5nm source.

Are either available for less money than the frequency of the beam in gHz? :)

I suppose it doesn't need to be in the 6xx nm bands, but any two sources that I can get a 20.8tHz difference between them should be worth a shot.

Thanks!

DX
 




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