期刊
OPTICS LETTERS
卷 47, 期 20, 页码 5289-5292出版社
Optica Publishing Group
DOI: 10.1364/OL.471458
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资金
- Air Force Office of Scientific Research [FA9550-16-1-0121]
- National Nuclear Security Administration [DE-NA0003960]
- Agencia Estatal de Investigacion [PID2019-106910GB-I00]
This study investigates nonlinear pulse compression at mid-IR wavelengths numerically, revealing a wide range of self-compression possibilities and optimization rules, as well as solitonic dynamics and limitations, setting a framework for future experimental work using few-cycle pulses.
We numerically investigate the regime of nonlinear pulse compression at mid-IR wavelengths in a multi-pass cell (MPC) containing a dielectric plate. This post-compression setup allows for ionization-free spectral broadening and self -compression while mitigating self-focusing effects. We find that self-compression occurs for a wide range of MPC and pulse parameters and derive scaling rules that enable its optimization. We also reveal the solitonic dynamics of the pulse propagation in the MPC and its limitations and show that spatiotemporal/spectral couplings can be mitigated for appropriately chosen parameters. In addition, we reveal the formation of spectral features akin to quasi-phase matched degenerate four-wave mixing. Finally, we present two case studies of self-compression at 3-mu m and 6-mu m wavelengths using pulse parameters compatible with driving high-field physics experiments. The simulations presented in this paper set a framework for future experimental work using few -cycle pulses at mid-IR wavelengths.(c) 2022 Optica Publishing Group
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