Re: Looking for an Example of Interferometry to Illustrate Increased Resolution

Wayne
Like some other folks I'm not sure exactly what 'resolution' you mean here,
but if you are interested in increasing the resolution of a dispersion
element ( a grating for example) you may want to google Externally Dispersed
Interferometry (might be EDI.org).

This approach uses interferometrically generated fringes imprinted on a
spectrum to boost the natural resolution of a disperser, and has been used
to extract eye-wateringly small 'doppler shifts' from stellar spectra.

HTH

Iain


"W. Watson" <wolf_tracks@xxxxxxxxxxx> wrote in message
news:t43nj.1876$Ej5.1667@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I'm looking for a non-mathematical example that pretty well makes it clear
that interferometry increases resolution of an object. Something tangible
would be useful. I'm thinking in terms of its use in astronomy. For
example, and I have no idea of this is workable, use a water tank and
produce waves from two sources, then perhaps somewhere on the combined
wave fronts there is something that might illustrate this point. Slinkys?
Vibrating drum surface? Commonly available lasers? Simple mirrors and
lenses?
--
Wayne Watson (Nevada City, CA)

Web Page: <speckledwithStars.net>


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