[time-nuts] optically excite a quartz crystal?

Attila Kinali attila at kinali.ch
Mon Apr 21 09:18:01 EDT 2014


On Mon, 21 Apr 2014 14:54:12 +0200
Magnus Danielson <magnus at rubidium.dyndns.org> wrote:

> > 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
> 
> 10 mW laser is reasonable.
> 
> What levels of signal where they getting?

6.2mV, with an real laser incident power of 5mW (the AOM "ate" half of the power)

			Attila Kinali

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