Intense infrared lasers for strong-field science

Z Chang, L Fang, V Fedorov, C Geiger… - Advances in Optics …, 2022 - opg.optica.org
The advent of chirped-pulse amplification in the 1980s and femtosecond Ti: sapphire lasers
in the 1990s enabled transformative advances in intense laser–matter interaction physics …

Solitary beam propagation in periodic layered Kerr media enables high-efficiency pulse compression and mode self-cleaning

S Zhang, Z Fu, B Zhu, G Fan, Y Chen, S Wang… - Light: Science & …, 2021 - nature.com
Generating intense ultrashort pulses with high-quality spatial modes is crucial for ultrafast
and strong-field science and can be achieved by nonlinear supercontinuum generation …

Optical parametric amplification of phase-stable terahertz-to-mid-infrared pulses studied in the time domain

N Kanda, N Ishii, J Itatani, R Matsunaga - Optics Express, 2021 - opg.optica.org
We report optical parametric amplification (OPA) of low-frequency infrared pulses in the
intermediate region between terahertz (THz) frequency and mid-infrared (MIR), ie, from 16.9 …

Operation at 1 MHz of 1.7-cycle multiple plate compression at 35-W average output power

T Okamoto, Y Kunihashi, Y Shinohara, H Sanada… - Optics Letters, 2023 - opg.optica.org
We generate 1.7-cycle and 35-µJ pulses at a 1-MHz repetition rate by using two-stage
multiple plate continuum compression of Yb-laser pulses with 80-W average input power. By …

Spatially homogeneous few-cycle compression of Yb lasers via all-solid-state free-space soliton management

B Zhu, Z Fu, Y Chen, S Peng, C Jin, G Fan, S Zhang… - Optics …, 2022 - opg.optica.org
The high power and variable repetition-rate of Yb femtosecond lasers makes them very
attractive for ultrafast science. However, for capturing sub-200 fs dynamics, efficient, high …

High-power ytterbium-doped fiber laser delivering few-cycle, carrier-envelope phase-stable 100 µJ pulses at 100 kHz

E Shestaev, D Hoff, AM Sayler, A Klenke, S Hädrich… - Optics Letters, 2019 - opg.optica.org
We present a carrier-envelope phase (CEP)-stable Yb-doped fiber laser system delivering
100 µJ few-cycle pulses at a repetition rate of 100 kHz. The CEP stability of the system when …

Enhanced intrapulse difference frequency generation in the mid-infrared by a spectrally dependent polarization state

Q Bournet, F Guichard, M Natile, Y Zaouter, M Joffre… - Optics Letters, 2022 - opg.optica.org
We present a technique to optimize the intrapulse difference frequency generation efficiency
for mid-infrared generation. The approach employs a multi-order wave plate that is designed …

Inline amplification of mid-infrared intrapulse difference frequency generation

Q Bournet, M Jonusas, A Zheng, F Guichard, M Natile… - Optics Letters, 2022 - opg.optica.org
We demonstrate an ultrafast mid-infrared source architecture that implements both
intrapulse difference frequency generation (iDFG) and further optical parametric …

Quantification and analysis of the nonlinear effects in spectral broadening through solid medium of femtosecond pulses by neural network

Y Gao, X Wang, X Zhu, K Zhao, H Liu, Z Wang… - Physical Review …, 2022 - APS
Supercontinuum generation has been widely applied in laser spectroscopy and few-cycle
pulse generation. It is composed of complex and unmeasurable nonlinear optical effects …

Rapid-Scan Resonant Two-Dimensional Impulsive Stimulated Raman Spectroscopy of Excited States

Y Yoneda, H Kuramochi - The Journal of Physical Chemistry A, 2023 - ACS Publications
Photochemical reactions occur in the electronically excited state, which is effectively
represented by a multidimensional potential energy surface (PES) with a vast degree of …