In situ optoacoustic measurement of the pointing stability of femtosecond laser beamsстатья
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Дата последнего поиска статьи во внешних источниках: 20 марта 2018 г.
Аннотация:A new method for the in situ acoustic measurement of the beam pointing stability (BPS) of
powerful pulsed lasers is tested. A broadband (~6 MHz) piezoelectric transducer placed a few
millimeters from the laser spark produces an electric pulse. We show that variation in time of
the position of this pulse can be used to assess the BPS down to 1 µrad in a few hundred laser
shots. The estimated value coincides well with the BPS estimated using standard measurement
in the far field