Ablaze
0
- Joined
- Oct 19, 2011
- Messages
- 462
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Hi, new to this forum.
I've been messing around with cheap commercial lasers for a while now and it has occurred to me that it would be really nice to be able to verify what frequency a laser is actually outputting at.
For instance, I have a cheap red laser pointer here and I would like to know if it is 635nm like it says, or really 658nm like I suspect it is.
Remembering back to physics class, we used diffraction gratings to measure light emissions. Can I use them to measure the wavelength of low powered lasers? (<=20mw)?
What about something like this? Scott Resources & Hubbard Scientific Spectroscope :: Light & Sound :: American Educational Products :: Teacher Supply :: Artist Supply Source
.. or is that too cheap?
I've been messing around with cheap commercial lasers for a while now and it has occurred to me that it would be really nice to be able to verify what frequency a laser is actually outputting at.
For instance, I have a cheap red laser pointer here and I would like to know if it is 635nm like it says, or really 658nm like I suspect it is.
Remembering back to physics class, we used diffraction gratings to measure light emissions. Can I use them to measure the wavelength of low powered lasers? (<=20mw)?
What about something like this? Scott Resources & Hubbard Scientific Spectroscope :: Light & Sound :: American Educational Products :: Teacher Supply :: Artist Supply Source
.. or is that too cheap?
