All Questions
4
questions
0
votes
2
answers
75
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Is $I(\lambda)=I(\tilde{\nu})$ true in general in Fourier Optics?
Say the spectrum of a light bulb is given by $$I(\lambda)=I_0exp\left(-\frac{(\lambda-\lambda_0)^2}{2(\delta \lambda)^2}\right)$$
(i.e. a gaussian)
if I want the intensity in terms of the wavenumber $\...
- 1,047
0
votes
2
answers
160
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Misconception with Fourier Transforms in a Gaussian Light source?
So for a Michaelson Interferometer , we know that the (complex) interferogram ($I=I(\Delta)$, $\Delta$=path difference between two mirrors) is related to the intensity profile of the light source $(...
- 1,047
1
vote
1
answer
107
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Obtain clear fringes from interferometer
I have just begun setting up an interferometer to take some measurements. I am trying to reproduce one paper I found in literature for 3 DoF homodyne interferometry. The detector is merly a CMOS ...
- 21
2
votes
3
answers
9k
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How to measure an image's contrast?
I'm studying Fourier optics and Interferometry and I intend to determine the contrast of an image using computer software. My teacher of Experimental Physics didn't tell me how to do it, and so, I'm ...
- 1,082