Single-Slit Fraunhofer Diffraction

Рет қаралды 20,092

5 жыл бұрын

/ edmundsj
If you want to see more of these videos, or would like to say thanks for this one, the best way you can do that is by becoming a patron - see the link above :). And a huge thank you to all my existing patrons - you make these videos possible.
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.

Пікірлер: 12

@zainkarriem6344 4 жыл бұрын

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.

@JordanEdmundsEECS 4 жыл бұрын

Primarily Goodman’s textbook, I think his is pretty much the only one.

@zainkarriem6344 4 жыл бұрын

@@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!

@DavidTrejoG 4 жыл бұрын

Great video! Thanks for this :)

@user-el8pv3do4c 4 жыл бұрын

Very good video!!!

@haya4895 4 жыл бұрын

this is very helpful, thanx alot. will you do double slit FD?

@CohenSu Жыл бұрын

double slit FD is quite the same as single slit but with two rect function located at different location

@CyberHo4X 6 ай бұрын

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

@rava477 2 жыл бұрын

guys is fraunhofer diffraction called fraunhofer lines?

@JordanEdmundsEECS 2 жыл бұрын

Nope, Fraunhofer lines have to do with absorption of light be the atmosphere, not diffraction. Unfortunate overlap in the name xD

@sagibruck6788 23 күн бұрын

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