Gruson V, Ernotte G, Lassonde P, Laramée A, Bionta M R, Chaker M, Di Mauro L, Corkum P B, Ibrahim H, Schmidt B E, Legaré F
Opt Express. 2017 Oct 30;25(22):27706-27714. doi: 10.1364/OE.25.027706.
Broadband optical parametric amplification in the IR region has reached a new milestone through the use of a non-collinear Frequency domain Optical Parametric Amplification system. We report a laser source delivering 11.6 fs pulses with 30 mJ of energy at a central wavelength of 1.8 μm at 10 Hz repetition rate corresponding to a peak power of 2.5 TW. The peak power scaling is accompanied by a pulse shortening of about 20% upon amplification due to the spectral reshaping with higher gain in the spectral wings. This source paves the way for high flux soft X-ray pulses and IR-driven laser wakefield acceleration.
通过使用非共线频域光学参量放大系统，红外区域的宽带光学参量放大达到了一个新的里程碑。我们报道了一种激光源，它在10 Hz重复频率下，中心波长为1.8μm，能输出能量为30 mJ、脉宽为11.6 fs的脉冲，对应峰值功率为2.5 TW。由于光谱边缘具有更高增益导致光谱重塑，放大时峰值功率缩放伴随着脉冲缩短约20%。该光源为高通量软X射线脉冲和红外驱动的激光尾场加速铺平了道路。
