Theory of the dispersive modulator
作者： D. Grischkowsky , M. M. T. Loy
DOI: 10.1063/1.88124
关键词: Far-infrared laser 、 Chirp radar 、 Physics 、 Amplitude modulation 、 Optics 、 Light beam
摘要: The recent observations by Loy of amplitude modulation and compression infrared laser pulses caused passage through the dispersive modulator (a cell containing dilute NH3 vapor with a Stark−modulated resonant frequency) are explained. It is shown that there formal equivalence between (i) near−resonant light beam time−dependent frequency, (ii) frequency−modulated constant frequency. For low−intensity this reduces problem to optical analog chirp radar.
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