Institute for Quantum Studies and Department of Physics, Texas A&M University, College Station, Texas 77843-4242, USA.
Opt Lett. 2011 Oct 15;36(20):4032-4. doi: 10.1364/OL.36.004032.
We report pulse-shaper-assisted phase control of a broad spectrum, aiming to synthesize nonsinusoidal waveforms. We first generate multiple-order coherent Raman sidebands by focusing two laser beams into a piece of diamond. Then we combine five sidebands into a single beam by using a prism. Our setup allows for both coarse, manual phase adjustments and fine tuning of the spectral phases. A flat spectral phase across these five frequency-separated sub-bands is achieved, which implies generation of two to three optical-cycle pulses.
我们报告了一种利用脉冲整形辅助的宽谱相位控制方法，旨在合成非正弦波形。我们首先将两束激光聚焦到一块钻石上，产生多个阶次的相干拉曼边带。然后，我们使用棱镜将这五个边带组合成一束光。我们的设置既允许进行粗略的手动相位调整，也允许对光谱相位进行微调。实现了这五个频率分离子带的平坦光谱相位，这意味着可以产生两个到三个光周期的脉冲。
