Mid-infrared laser filaments in the atmosphere

AV Mitrofanov, AA Voronin, DA Sidorov-Biryukov… - Scientific reports, 2015 - nature.com
Filamentation of ultrashort laser pulses in the atmosphere offers unique opportunities for
long-range transmission of high-power laser radiation and standoff detection. With the …

[PDF][PDF] Table-top optical parametric chirped pulse amplifiers: past and present

A Dubietis, A Matijošius - Opto-Electron. Adv., 2023 - researching.cn
The generation of power-and wavelength-scalable few optical cycle pulses remains one of
the major challenges in modern laser physics. Over the past decade, the development of …

Free-space nitrogen gas laser driven by a femtosecond filament

D Kartashov, S Ališauskas, G Andriukaitis… - Physical Review A …, 2012 - APS
We report an experimental proof and full characterization of laser generation in molecular
nitrogen in an argon-nitrogen gas mixture remotely excited at a distance above 2 m in a …

Keldysh photoionization theory: through the barriers

AM Zheltikov - Physics-Uspekhi, 2017 - iopscience.iop.org
The Keldysh photoionization theory is a conceptual cornerstone and a universal framework
for the description of a broad class of fundamental effects in light–matter interaction. Here …

Laser-induced filaments in the mid-infrared

AM Zheltikov - Journal of Physics B: Atomic, Molecular and …, 2017 - iopscience.iop.org
Laser-induced filamentation in the mid-infrared gives rise to unique regimes of nonlinear
wave dynamics and reveals in many ways unusual nonlinear-optical properties of materials …

Subterawatt few-cycle mid-infrared pulses from a single filament

AV Mitrofanov, AA Voronin, DA Sidorov-Biryukov… - Optica, 2016 - opg.optica.org
Filamentation-assisted pulse compression in the gas phase is shown to enable the
generation of subterawatt few-cycle pulses in the mid-infrared (mid-IR). With both spatial …

Multioctave, 3–18 μm sub-two-cycle supercontinua from self-compressing, self-focusing soliton transients in a solid

AA Lanin, AA Voronin, EA Stepanov, AB Fedotov… - Optics letters, 2015 - opg.optica.org
Strongly coupled nonlinear spatiotemporal dynamics of ultrashort mid-infrared pulses
undergoing self-focusing simultaneously with soliton self-compression in an anomalously …

White light generation over three octaves by femtosecond filament at 3.9 µm in argon

D Kartashov, S Ališauskas, A Pugžlys, A Voronin… - Optics letters, 2012 - opg.optica.org
We report the first (to our knowledge) experimental results and numerical simulations on mid-
IR femtosecond pulse filamentation in argon using 0.1 TW peak-power, 80 fs, 3.9 μm pulses …

Mid-infrared laser filamentation in molecular gases

D Kartashov, S Ališauskas, A Pugžlys, A Voronin… - Optics letters, 2013 - opg.optica.org
We observed the filamentation of mid-infrared ultrashort laser pulses (3.9 μm, 80 fs) in
molecular gases. It efficiently generates a broadband supercontinuum over two octaves in …

Nonlinear mid-infrared meta-membranes

G Sartorello, J Bocanegra, D Knez, DM Lukin… - …, 2024 - degruyter.com
Nanophotonic structures have shown promising routes to controlling and enhancing
nonlinear optical processes at the nanoscale. However, most nonlinear nanostructures …