Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Supercontinuum generation in a solid-state medium was investigated experimentally. A continuum covering 460 to 950 nm was obtained when 0.8 mJ/30 fs Ti:sapphire laser pulses were applied to seven thin fused silica plates at a 1 kHz repetition rate. The primary processes responsible for spectral broadening were self-phase modulation (SPM) and self-steepening, while SPM and self-focusing were balanced to optimize the spectral broadening and suppress the multiphoton process. The output was compressed to a 5.4 fs and a 0.68 mJ pulse, corresponding to two optical cycles and 0.13 TW of peak power.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OL.42.000474 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Programmable liquid-core fibers: Reconfigurable local dispersion control for computationally optimized ultrafast supercontinuum generation.
Nat Commun
August 2025
Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, Jena, Germany.
The field of computationally controlled light faces a strong demand for new platforms capable of providing adaptable light generation to meet the requirements of advanced photonic technologies. Here, we present the concept of computationally optimized nonlinear frequency conversion in programmable liquid-core fibers that enables real-time tunable and reconfigurable nonlinear power distribution through computationally optimized dispersion landscapes. The concept combines a temperature-sensitive mode in a liquid-core fiber, particle swarm optimization, fission of ultra-fast solitons, and a computer-controlled heating array to create a feedback loop for controlling output spectra via local temperature-induced dispersion modulation.
View Article and Find Full Text PDFFemtosecond, broadband stimulated Raman spectroscopy is a popular approach to measuring molecular dynamics with excellent signal-to-noise and spectral resolution. We present a new method for broadband stimulated Raman spectroscopy that employs Kerr instability amplification to amplify the supercontinuum spectrum from sapphire and create a highly tunable Raman probe spectrum spanning from 530 to 1000 nm (-6000 to 2800 cm). Our method, called Kerr instability amplification for broadband-stimulated Raman spectroscopy (KAB-SRS) provides an alternative to optical parametric amplifiers by producing a broader and more tunable spectrum at a significantly reduced cost to OPA implementations.
View Article and Find Full Text PDFSwitched Supercontinuum Coherent Radiation and Coherent Raman Comb by Four-Wave Mixing and Cross-Pumping from Stimulated Raman Scattering in Binary Liquid Mixtures.
J Phys Chem Lett
August 2025
Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China.
A scheme of switching supercontinuum coherent radiation and a coherent Raman comb is proposed, based on stimulated Raman scattering (SRS)-induced four-wave mixing (FWM) and the cross-pumping effect in cyclohexane (CH)/carbon tetrachloride (CCl) mixtures. CH exhibits two SRS peaks (ν and ν), attributed to the symmetric and antisymmetric stretching of -CH, respectively. Supercontinuum coherent radiation via FWM between the second-order Stokes SRS (ω) of ν and the sum frequency (ω) of ν and ν is generated at a volume ratio of 3:7, which contains 13 peaks with a frequency interval of approximately 85 cm, spanning a radiation bandwidth from 4850 to 5897 cm.
View Article and Find Full Text PDFDirect third harmonic generation (DTHG) is a third-order nonlinear process in which energy and momentum are exchanged between different modes of the optical field without being restricted by the crystal symmetry. For the first time (to our knowledge), tunable ultraviolet (UV) output is achieved in the birefringent crystal via DTHG. Using a 1030-nm femtosecond laser source to pump a -BaBO (-BBO) crystal, a broadband supercontinuum spectrum of 400-1600 nm is generated by the self-phase modulation effect.
View Article and Find Full Text PDFNonlinear inference capacity of fiber-optical extreme learning machines.
Nanophotonics
August 2025
Leibniz-Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany.
The intrinsic complexity of nonlinear optical phenomena offers a fundamentally new resource to analog brain-inspired computing, with the potential to address the pressing energy requirements of artificial intelligence. We introduce and investigate the concept of nonlinear inference capacity in optical neuromorphic computing in highly nonlinear fiber-based optical Extreme Learning Machines. We demonstrate that this capacity scales with nonlinearity to the point where it surpasses the performance of a deep neural network model with five hidden layers on a scalable nonlinear classification benchmark.
View Article and Find Full Text PDF