[time-nuts] optically excite a quartz crystal?
attila at kinali.ch
Mon Apr 21 09:40:39 UTC 2014
On Mon, 21 Apr 2014 17:12:54 +1200
Bruce Griffiths <bruce.griffiths at xtra.co.nz> wrote:
> Optical excitation of quartz resonators: Electronics Letters
> <http://digital-library.theiet.org/content/journals/el>, Volume 18,
> Issue 9 <http://digital-library.theiet.org/content/journals/el/18/9>, 29
> April 1982, p. 381 – 382
For those who dont want to buy the paper, here a short summary:
They used a 10mW HeNe laser, modulated with 1kHz to 1MHz on
various quartz cuts (X+5°, DT, AT) and could measure oscillations
of the quartz using metal electrodes.
The mechanism of exitation was photothermal
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