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Acousto-optic lens for pulsed lasers

机译:脉冲激光的声光透镜

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摘要

Theoretical predictions of the acousto-optic interaction under Raman-Nath conditions of ultrasound and laser light with a beam width w comparable to or smaller than the ultrasonic wavelength Λ are experimentally investigated, and good agreement between experiment and prediction is found. The experimental setup consists of a pulsed laser, emitting pulses that are synchronized with the sound frequency by means of a controllable delay time. When w≈Λ, strong focusing is obtained for most delay times. The lensing properties of this configuration are carefully investigated.
机译:实验研究了超声波和光束宽度w等于或小于超声波波长Λ的激光在拉曼-纳特条件下的声光相互作用的理论预测,并且发现实验与预测之间具有良好的一致性。实验装置包括一个脉冲激光器,该激光器发射的脉冲通过可控的延迟时间与声频同步。当w≈Λ时,对于大多数延迟时间都可以获得强聚焦。仔细研究了此配置的镜头特性。

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