David Notebook: Difference between revisions

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with power in nW. This is the chopped power at 400 Hz for 633 nm light.
 
Hmm, this won't work for low powers though, since it's minimum value is the in 30s. I'll need to figure out a better way to do this, but it's difficult because I can't easily directly measure nW level powers to send to the photodiode.
 
 

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