How hard would it be to output a stable beam if a certain wavelength?

[Nerdydude101]

I want to output a specific wavelength of infrared light, I believe the wavelength was 9.25nm, how hard would that be and how would I proceed?

 

[f95toli]

Are you sure the wavelength was 9.25nm and not 925nm? The factor of 100 makes difference...
The latter is IR and something you could potentially get from a diode, the former is way up in the UV range and would be very difficult (and potentially dangerous) to generate.

 

[Nerdydude101]

I'm trying to find the glucose in the bloodstream, this is the best description I got but other articles say similar things
http://www.madsci.org/posts/archives/2009-02/1235057498.Bc.r.html

 

[f95toli]

The article says 9.25 mm...not mm. That is in the microwave regime, so not very difficult if you have the equipment(a microwave generator)

 

[Nerdydude101]

wouldn't microwaves be harmful to a human because of the way they spin water molecules?

 

[UltrafastPED]

6-12 mm are at the low end of the EHF part of the spectrum: http://en.wikipedia.org/wiki/Extremely_high_frequency

Look at http://en.wikipedia.org/wiki/Extremely_high_frequency#Medicine

Here is some biological research in that area:
http://en.wikipedia.org/wiki/EHF_therapy

 

[Drakkith]

wouldn't microwaves be harmful to a human because of the way they spin water molecules?

Only if the power output is high enough to burn someone.

 

[davenn]

Only if the power output is high enough to burn someone.

its not just about the power level

even low power microwave signals are dangerous in a confined area or high gain antenna
1 Watt of 24 GHz out the end of a waveguide definitely burns skin in close proximity in a few seconds or so and that would be even more damaging to sensitive body areas like eyes

The OP is talking about 9.5 mm wavelength, ~ 31 GHz a significantly high microwave freq
I haven't operated any gear above 24GHz

cheers
Dave