Talk:Distributed Bragg reflector

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[edit] Reflectivity

Dopeydog,

Is it correct, the reflectivity formula is for the center wavelength of the stopband?

Also, the graph often loses detail (for example, all of the text and lines) when scaled. This seems to depend on the browser, screen resolution, etc. Can your program produce a black-on-white version? (I'm assuming you're the "Me" who submitted the graph).

--The Photon 05:07, 14 August 2006 (UTC)

I may have confused matters with my edit. The formula for bandwidth used several variables which were not defined in the article. I took my best guess as to what he intended. (Note to Dopeydog: In Wikipedia, as in academic writing, always define even the most trivial of variables. You may not assume that the reader knows what you mean by λ, ν, etc.)--Srleffler 05:22, 14 August 2006 (UTC)

[edit] Non optical

this page seems to be focusing solely on the optical side of things, there's a different formula for corrugated metal waveguides determining the central frequency of refelection.

also i edited the bit at the end just to include free electron masers as these mirrors are excellent in such devices.—Preceding unsigned comment added by Hermanzegerman (talk • contribs) 05:22, March 1, 2007

I'm not familiar with these corrugated metal waveguides. Are they still "distributed Bragg reflectors"?--Srleffler 13:12, 1 March 2007 (UTC)

Definately, they still have Bragg reflecting devices distributed across their surface. There's lots of papers on coaxial, cylindrical and planar DBRs in FELs, Gyratrons and the like. They're big RF pulsed power devices popular in Russia and China for their potential in directed energy systems.Barryferguson6 11:13, 4 September 2007 (UTC)