Single-Slit Fraunhofer Diffraction
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- Опубликовано: 13 окт 2024
- / edmundsj
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In this video, I go over one-dimensional single-slit Fraunhofer diffraction. I walk through the mathematics using the Fourier Transform to calculate the intensity at a screen a distance d away, as a function of the screen coordinates.
This is part of my graduate series on optoelectronics / photonics, and is based primarily on Coldren's book on Lasers as well as graduate-level coursework I have taken in the EECS department at UC Berkeley.
Hope you found this video helpful, please post in the comments below anything I can do to improve future videos, or suggestions you have for future videos.
This is the clearest explanation I’ve seen on this topic and topics related to Fourier optics. Awesome job! I’d be interested to see which references you used.
Primarily Goodman’s textbook, I think his is pretty much the only one.
@@JordanEdmundsEECS You mean "Introduction to Fourier Optics"? I didn't know about this title till now. Will check it out. Oh, I also liked your description of diffraction as the evolution of the wave. I've spoken to many people about diffraction and I found that it means different things to different people, but the evolution concept seems to unify different views for me. Thanks!
Can you tell me which grating equtation is the right and why?
Ive seen the one d = m*lambda / sin(i)+sin(o)
and ive also seen d = m*lambda / sin(i)-sin(o)
Which is right and what is the generel sign convention?
Thank you
this is very helpful, thanx alot.
will you do double slit FD?
double slit FD is quite the same as single slit but with two rect function located at different location
Great video! Thanks for this :)
Very good video!!!
there is a problem the expponent inside is exp(-0.5*jk/d(x_s-x)^2)-you took the x_s and took it out'you should multiply in 0.5 but tjats not my problem'my problem is that exp(-0.5jk/d*(-2x_s*x) is exp(jk*x_s*x/d) for foriour transform you need a minous in the exponent, your lesson is good but i just dont understand till the end
I cannot see anything in this video.There is just sound.
guys is fraunhofer diffraction called fraunhofer lines?
Nope, Fraunhofer lines have to do with absorption of light be the atmosphere, not diffraction. Unfortunate overlap in the name xD