[Laser] ULTRASONIC LIGHT MODULATION - new web page.

[Chris L]

Dear group,

Having seen a posting about how 'expensive and complex' ultrasound 
modulation of light beams was (it's not true!) I've put up a web page on the 
subject with details of a modulator that can reach about 500 kHz with ease, 
and several mHz with modification.

Please visit:

http://www.bluehaze.com.au/modlight/UltrasoundMod.htm

Lots of constructional stuff - how to recover old ex-army 10 MHz crystals 
and use them to generate ultrasound beams in a small liquid-filled glass 
tank to make a diffraction cell.

The ideal modulator if you're intent on using 632.8 um HeNe lasers...

and please, any comments or corrections to the e-mail addy above will be 
greatly appreciated.

All the best, folks!

Chris Long, Melbourne Australia.