Dual-frequency laser interferometer is a widely used precision measurement instrument.

双频激光干涉仪是应用广泛的精密测量仪器。

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In this paper, we have studied theoretically the resonant Self-focusing of two-frequency laser beams in plasmas.

本文从理论上详细地研究了双频激光在等离子体中的共振自聚焦。

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It also involves the design method, principle of two-frequency laser gauge meter and the result of verifications of standard devices using the gauge.

并介绍了双频激光同轴量规计的设计方法、工作原理及利用它对标准件定标的情况。

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Microvision's current pico projection engine uses red and blue laser diodes and a frequency-doubled "synthetic" green laser to create a full color image.

ENGADGET: Microvision integrates direct green laser into pico projector prototype, completes RGB achievement

By tuning the laser very precisely to the frequency of one particular sort of bond (such as that with a heavy carbon atom at one end), a molecule containing that bond can be shaken up.

ECONOMIST: Diamonds

And, just as light waves of the same frequency can be made to resonate in step with one another and so form a laser beam, it should be possible to make atoms of the same element resonate similarly.

ECONOMIST: The 2001 Nobel prizes: Playing catch-up | The