Recent content by nanath

This is an amplitude grating. So just to clarify then, the FT would look, in the spatial domain, like a series of spikes with a sinc function describing their amplitudes from a defined center? Also, the spacing between said spikes would be lambda*f/a?

Just ahead of time, no this is not related to homework or coursework in my case. I am a TA for an optics lab and need to know it so I can help the students in my class. I am trying to find an expression for the x-spacing for a grating imaged using the 4f method, which is a grating that is 1...

Thanks for your timely response. Although knowing that it has to be found numerically makes me slightly unhappy I'm glad to find that I wasn't missing anything more fundamental.

Thanks for the derivation. My final question is how one would analyze this integral (from 0 to z as you have it). Is it along the same lines we go about to derive the value of the error function from -inf to +inf?

I would like to know how the following integral for the error function gets derived (found by following the link): http://www.wolframalpha.com/input/?i=integrate+exp%28-x%5E2%29+from+x0+to+inf Note: this is not a homework question, merely a query.