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Science Forum Index » Optics Forum » air-gap inteferometry question
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 Posted: Thu Mar 20, 2008 9:47 am |
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The 2 'smooth' surfaces below are illuminated by a Hg lamp with normal
incidence. Surface 2 is moving downwards and I monitor the time-
resolved signal which gives interference oscillations (looking at a
single wavelength via a spectrometer).
What determines the amplitude (max-min) of the oscillations..? What
will be the effect of monitoring a wavelength which is not an emission
line compared to one which is..? Excepting of course the signal
strength and oscillation period will be different.
----------surface/material 1----------------------
-----------------------surface/material 2------------------- |
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