Thermodynamic and Nonlinear Optical Analysis of Multipass-Cell Based Pulse Compression in the $mathbf{2} mumathbf{m}$ Range
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2023-06-26 |
| Authors | Chao Mei, Uwe Griebner, GĆ¼nter Steinmeyer |
| Institutions | Max-Born-Institute for Nonlinear Optics and Short Pulse Spectroscopy, University of Science and Technology Beijing |
Abstract
Section titled āAbstractāWith the rapid advance of ultrafast laser technology, high-energy few-cycle pulses are becoming increasingly accessible [1]. Recently, the interest of generating high-energy few-cycle pulse has increasingly shifted towards even longer wavelengths in the <tex xmlns:mml=āhttp://www.w3.org/1998/Math/MathMLā xmlns:xlink=āhttp://www.w3.org/1999/xlinkā>$2\ \mu \mathrm{m}$</tex> range [2]. However, given the rather narrow band amplification range, gain narrowing effects during the amplification process limit the pulse duration of lasers system to about 2 ps, requiring hundredfold compression to reach the few-cycle range [3]. In the following, we numerically revisit the scenario of pulse compression in solid-state nonlinear media inside multipass cells (MPC). Multi-photon absorption, thermal conductivity, and linear absorption at <tex xmlns:mml=āhttp://www.w3.org/1998/Math/MathMLā xmlns:xlink=āhttp://www.w3.org/1999/xlinkā>$2\ \mu \mathrm{m}$</tex> range are considered for silica, sapphire, YAG and diamond.