Robinson T, O'Keeffe K, Landreman M, Hooker S M, Zepf M, Dromey B
Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK.
Opt Lett. 2007 Aug 1;32(15):2203-5. doi: 10.1364/ol.32.002203.
A simple method for generating trains of high-contrast femtosecond pulses is proposed and demonstrated: a linearly polarized, frequency-chirped laser pulse is passed through a multiple-order wave plate and a linear polarizer. It is shown theoretically that this arrangement forms a train of laser pulses, and in experiments the production of a train of approximately 100 pulses, each of 200 fs duration, is demonstrated. In combination with an acousto-optic programmable dispersive filter this technique could be used to generate and control pulse trains with chirped spacing. Pulse trains of this type have widespread applications in ultrafast optics.
将一个线性偏振、频率啁啾的激光脉冲通过一个多级波片和一个线性偏振器。从理论上表明，这种装置能形成一列激光脉冲，并且在实验中演示了产生一列约100个脉冲，每个脉冲持续时间为200飞秒。与声光可编程色散滤波器相结合，该技术可用于产生和控制具有啁啾间距的脉冲序列。这种类型的脉冲序列在超快光学中有着广泛的应用。
