Photonics Institute, Vienna University of Technology, Gusshausstrasse 27-387, A-1040, Vienna, Austria.
Opt Lett. 2011 Aug 1;36(15):2755-7. doi: 10.1364/OL.36.002755.
We demonstrate a compact 20 Hz repetition-rate mid-IR OPCPA system operating at a central wavelength of 3900 nm with the tail-to-tail spectrum extending over 600 nm and delivering 8 mJ pulses that are compressed to 83 fs (<7 optical cycles). Because of the long optical period (∼13 fs) and a high peak power, the system opens a range of unprecedented opportunities for tabletop ultrafast science and is particularly attractive as a driver for a highly efficient generation of ultrafast coherent x-ray continua for biomolecular and element specific imaging.
我们展示了一种紧凑的 20 Hz 重复率中红外 OPCPA 系统，其中心波长为 3900nm，尾对尾光谱扩展超过 600nm，可提供 8mJ 的脉冲，压缩至 83fs（<7 光学周期）。由于长光学周期（~13fs）和高峰值功率，该系统为台式超快科学开辟了一系列前所未有的机会，特别适合作为高效产生超快相干 X 射线连续谱的驱动源，用于生物分子和元素特定成像。
