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单词 Ultrafast phenomena
释义

Ultrafast phenomena

英语百科

Ultrashort pulse

(重定向自Ultrafast phenomena)
A positively chirped ultrashort pulse of light in the time domain.

In optics, an ultrashort pulse of light is an electromagnetic pulse whose time duration is of the order of a picosecond (10 second) or less. Such pulses have a broadband optical spectrum, and can be created by mode-locked oscillators. They are commonly referred to as ultrafast events. Amplification of ultrashort pulses almost always requires the technique of chirped pulse amplification, in order to avoid damage to the gain medium of the amplifier.

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