Zhi Miaochan, Wang Xi, Sokolov Alexei V
Department of Physics and Institute for Quantum Studies, Texas A&M University, College Station, Texas 77840-4242, USA.
Opt Express. 2008 Aug 4;16(16):12139-47. doi: 10.1364/oe.16.012139.
We demonstrate broadband light generation in diamond pumped by two-color femtosecond laser pulses. We find that phase matching plays a critical role in the output angle and frequency of the generated sidebands. When a third femtosecond probe pulse is applied to the crystal in the boxed Coherent anti-Stokes Raman Scattering geometry, a two-dimensional array of multi-color beams is generated through the Raman, four-wave mixing, and six-wave-mixing processes. We test the mutual coherence between the generated sidebands. Such coherence, maintained over the broad spectrum, opens possibilities for synthesis of subfemtosecond light waveforms.
我们展示了用双色飞秒激光脉冲泵浦金刚石产生宽带光。我们发现相位匹配在产生边带的输出角度和频率中起着关键作用。当在盒装的相干反斯托克斯拉曼散射几何结构中向晶体施加第三个飞秒探测脉冲时，通过拉曼、四波混频和六波混频过程产生二维多色光束阵列。我们测试了产生的边带之间的相互相干性。这种在宽光谱上保持的相干性为合成亚飞秒光波形开辟了可能性。
