论文标题
高光泽度七八链载体信封相位稳定光源
High-brightness seven-octave carrier envelope phase-stable light source
论文作者
论文摘要
从紫外线到THZ的光谱覆盖的相干性和少量循环光波形的高亮度来源将为从生物化学传感到时间分辨率和非线性光谱范围的壮观应用提供前所未有的多功能性和机会。各种源与频率转换和超脑生成的组合可以提供相对较大的光谱覆盖率，但是许多应用需要更广泛的光谱范围和低射频同步，以进行时间域测量。在这里，我们提出了一个载体 - Envelope稳定的光源，由MID-IR频率梳子播种，并在7个光学八度范围内同时光谱覆盖，从UV（340 nm）到THZ（40,000 nm）。在抗谐波反射光子晶体纤维中，将孤子自我压缩和分散波产生与baga2gese6中的脉冲差频率产生，光谱亮度在同步源以上的数量级为2-5个。这可以使高动力范围的光谱镜像为Attosent物理和物质科学提供诱人的前景。
High-brightness sources of coherent and few-cycle-duration light waveforms with spectral coverage from the UV to the THz would offer unprecedented versatility and opportunities for a spectacular range of applications from bio-chemical sensing, to time-resolved and nonlinear spectroscopy, to attosecond light-wave electronics. Combinations of various sources with frequency conversion and supercontinuum generation can provide relatively large spectral coverage, but many applications require much broader spectral range and low-jitter synchronization for time-domain measurements. Here, we present a carrier-envelope-phase stable light source, seeded by a mid-IR frequency comb, with simultaneous spectral coverage across 7 optical octaves, from the UV (340 nm) into the THz (40,000 nm). Combining soliton self-compression and dispersive wave generation in an anti-resonant-reflection photonic crystal fibre with intra-pulse difference frequency generation in BaGa2GeSe6, the spectral brightness is 2-5 orders of magnitude above synchrotron sources. This enables high-dynamic-range spectroscopies and provides enticing prospects for attosecond physics and material sciences.
