On 04/21/2014 03:18 PM, Attila Kinali wrote:
On Mon, 21 Apr 2014 14:54:12 +0200
Magnus Danielson <[email protected]> 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)
Cool. Today we use semiconductor lasers that we can modulate directly,
so no need for the AOM on the NeHe laser.
Cheers,
Magnus
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