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Title: Long-wavelength-infrared laser filamentation in solids in the near-single-cycle regime

Journal Article · · Optics Letters
DOI:https://doi.org/10.1364/OL.389456· OSTI ID:1608358

We experimentally demonstrate long-wavelength-infrared (LWIR) femtosecond filamentation in solids. Systematic investigations of supercontinuum (SC) generation and self-compression of the LWIR pulses assisted by laser filamentation are performed in bulk KrS-5 and ZnSe, pumped by ∼ <#comment/> 145 f s , 9 µm, 10 µJ pulses from an optical parametric chirped-pulse amplifier operating at 10 kHz of repetition rate. Multi-octave SC spectra are demonstrated in both materials. While forming stable single filament, 1.5 cycle LWIR pulses with 4.5 µJ output pulse energy are produced via soliton-like self-compression in a 5 mm thick KrS-5. The experimental results quantitatively agree well with the numerical simulation based on the unidirectional pulse propagation equation. This work shows the experimental feasibility of high-energy, near-single-cycle LWIR light bullet generation in solids.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0018378
OSTI ID:
1608358
Journal Information:
Optics Letters, Journal Name: Optics Letters Vol. 45 Journal Issue: 8; ISSN 0146-9592
Publisher:
Optical Society of AmericaCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

References (30)

Multi-watt, multi-octave, mid-infrared femtosecond source journal April 2018
Multi-octave supercontinuum generation from mid-infrared filamentation in a bulk crystal journal January 2012
Ionization-assisted guided-wave pulse compression to extreme peak powers and single-cycle pulse widths in the mid-infrared journal January 2010
Nonlinear optical pulse propagation simulation: From Maxwell’s to unidirectional equations journal September 2004
Dispersion of bound electron nonlinear refraction in solids journal June 1991
Space-Time Observation of an Electron Gas in Si O 2 journal October 1994
Multi-millijoule few-cycle mid-infrared pulses through nonlinear self-compression in bulk journal September 2016
Multimicrojoule GaSe-based midinfrared optical parametric amplifier with an ultrabroad idler spectrum covering 42–16  μm journal January 2019
Three-octave-spanning supercontinuum generation and sub-two-cycle self-compression of mid-infrared filaments in dielectrics journal January 2015
Femtosecond filamentation in transparent media journal March 2007
Multi-mW, few-cycle mid-infrared continuum spanning from 500 to 2250 cm−1 journal December 2017
7  μm, ultrafast, sub-millijoule-level mid-infrared optical parametric chirped pulse amplifier pumped at 2  μm journal January 2016
90 GW peak power few-cycle mid-infrared pulses from an optical parametric amplifier journal January 2011
Self-compression to sub-3-cycle duration of mid-infrared optical pulses in dielectrics journal January 2013
Multioctave, 3–18  μm sub-two-cycle supercontinua from self-compressing, self-focusing soliton transients in a solid journal January 2015
Wavelength-scaled laser filamentation in solids and plasma-assisted subcycle light-bullet generation in the long-wavelength infrared journal August 2018
Supercontinuum generation in mixed thallous halides KRS-5 and KRS-6 journal April 2018
Enhanced self-compression of mid-infrared laser filaments in argon journal August 2013
Femtosecond measurement of nonlinear absorption and refraction in CdS, ZnSe, and ZnS journal October 1994
Optimization of a femtosecond pulse self-compression region along a filament in air journal March 2008
Generation of high-average-power ultra-broadband infrared radiation journal January 2018
The NIST quantitative infrared database journal January 1999
Ultrafast mid-infrared high harmonic and supercontinuum generation with n 2 characterization in zinc selenide journal January 2019
High-energy mid-infrared sub-cycle pulse synthesis from a parametric amplifier journal July 2017
High-power, mid-infrared, picosecond pulses generated by compression of a CO_2 laser beat-wave in GaAs journal January 2015
Watt-scale 50-MHz source of single-cycle waveform-stable pulses in the molecular fingerprint region journal January 2019
9  μm few-cycle optical parametric chirped-pulse amplifier based on LiGaS 2 journal January 2019
5  μm few-cycle pulses with multi-gigawatt peak power at a 1  kHz repetition rate journal January 2017
Super-octave longwave mid-infrared coherent transients produced by optical rectification of few-cycle 25-μm pulses journal January 2019
Electric-field reconstruction of femtosecond laser pulses from interferometric autocorrelation using an evolutionary algorithm journal March 2007