The method involves generating an optical landscape using an acousto-optic device.
The effects of the chain dispersal can be compensated by programming the acousto-optic device.
An output beam from the laser is passed through a tuneable filter comprising an acousto-optic device and is directed at a sample to be analyzed.
Disclosed is an acousto-optic device having a number of acoustic attenuating structures and a method to limit the parasitic effects of a surface acoustic wave.
An acousto-optic (AO) device 300 includes an AO interaction crystal attached to the electrode layer 390 which receives acoustic waves from the transducer 385.
Each scan is formed by a sweep of a spot by an acousto-optical device (AOD).
The wavelength can be easily selected using an acousto-optical device.
Switching of the beam by an acousto-optical device produces higher definition pulses than are generally obtainable from a laser pulsed at source or by a mechanical device.
The invention is characterised in comprising an acousto-optical device for dispersing light pulses with programmable spectral amplitude arranged in a multi-pass amplifier (12).
The signal channel light is expanded (11) to illuminate an acousto-optic (AO) device (13).
A corrosion resistant fluid cooled acousto-optic AO device (300) includes an AO interaction medium (301) and a piezoelectric transducer (315) affixed to the AO medium (301).
This leads to a spatial distribution of Doppler shifted frequencies.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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