科研之友
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摘要
We report the excitation of the non-steady-state photoelectromotive force using a uniformly accelerated motion of the recording light pattern. Such illumination is created by the linear frequency modulation of the interfering light beams. The pulsed response is observed experimentally in a semi-insulating GaAs crystal at a light wavelength of 633 nm. The evolution of the pulse shape vs. sweep rate is demonstrated. We also discuss the possible application of the effect in laser Doppler velocimeters and accelerometers.
- 出版日期2014-3
