Laser frequency conversion is a key technology in laser application.

激光变频技术是激光应用的重要环节。

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High sensitivity spectroscopy is a key technique for laser frequency stabilization.

高灵敏度谱分析技术是激光稳频系统的关键。

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Laser frequency is about 1014 ~ 1015hz, direct measurement of laser frequency stability is very difficult.

激光的频率约1014 ~ 1015hz，直接测量激光频率的稳定度是非常困难的。

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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

This ingenious technique which won its inventors, one of whom was Steven Chu, now America's energy secretary, a Nobel prize works by bombarding an object with laser light at a frequency just below that which it would readily absorb and re-emit if it were stationary.

ECONOMIST: An old thought experiment may soon be realised

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