Solving 910nm-382nm=528nm: Is It Feasible?

[davesplays]

What would prevent this from being feasible 910nm-382nm-=528nm?

 

[Redbelly98]

Other wavelengths are produced by taking the sum or difference of the frequencies, or of 1/λ.

So using 910 nm and 382 nm:

1/382 - 1/910 = 0.001519
and
1/0.001519 = 658

So this would produce light at 658 nm. However, there must also be a nonlinear crystal that would work at these wavelengths, and I am not sure if that is the case.

 

[physall]

how would you combine two beams. Using optics or electronics.

Thanks alot

physall

Other wavelengths are produced by taking the sum or difference of the frequencies, or of 1/λ.

So using 910 nm and 382 nm:

1/382 - 1/910 = 0.001519
and
1/0.001519 = 658

So this would produce light at 658 nm. However, there must also be a nonlinear crystal that would work at these wavelengths, and I am not sure if that is the case.

 

[Redbelly98]

Using optics, specifically a "mirror" that reflects one wavelength and transmits the other. For an example, see the final figure at the very bottom of the page here:

http://www.aero.org/publications/crosslink/spring2010/irnd.html

http://www.aero.org/publications/crosslink/spring2010/images/rnd_06.jpg​

The element just to the left of "DFG" is where the two laser beams are combined; the Tunable Laser beam is reflected, and the Nd:YAG beam is transmitted. The difference frequency beam is created within the DFG crystal.

p.s. Welcome to Physics Forums!