Max-Born-Institute, Berlin, Germany. zhavoron@mbi‑berlin.de
Opt Lett. 2011 Feb 15;36(4):529-31. doi: 10.1364/OL.36.000529.
An uniquely high conversion efficiency of fundamental radiation from a Ti:sapphire laser to a supercontinuum is achieved through filamentary propagation in sulfur hexafluoride (SF6) to generate a uniform over-octave spectrum. Two different parts of the supercontinuum, firstly around the fundamental wavelength of 800 nm and secondly within the newly generated frequency range around 550 nm, are shown to be compressible down to minimal pulse duration of about 10 fs demonstrating a potential of the method for single-cycle pulses generation.
通过在六氟化硫（SF6）中丝状传播，实现了从钛宝石激光器到超连续谱的基本辐射的独特高效率转换，从而产生均匀的超过一个倍频程的光谱。超连续谱的两个不同部分，首先是在基本波长 800nm 左右，其次是在新生成的大约 550nm 的频率范围内，被证明是可压缩的，脉冲持续时间最短可达约 10fs，这表明该方法有可能产生单周期脉冲。
