Results 21 to 30 of about 4,483 (188)

Mid-Infrared Supercontinuum and Frequency Comb Generations by Different Optical Modes in a Multimode Chalcogenide Strip Waveguide

open access: yesIEEE Access, 2020
Supercontinuum (SC) with broad bandwidth and high coherence is crucial in the SC-based frequency comb source generation. In this paper, we numerically investigate the mid-infrared (MIR) SC generations with the three optical modes (TE00, TE10, and TE20 ...
Yujun Cheng   +10 more
doaj   +1 more source

Ultraviolet supercontinuum generation driven by ionic coherence in a strong laser field

open access: yesNature Communications, 2022
Supercontinuum generation can be utilized for light source development. Here the authors demonstrate ultraviolet supercontinuum generation from ions due to strong field ionization and multiphoton resonance effect.
Hongbin Lei   +13 more
doaj   +1 more source

Supercontinuum Induced by Filamentation of Bessel-Gaussian and Laguerre-Gaussian Beams in Water

open access: yesApplied Sciences, 2022
In this paper, we study the characteristics of the supercontinuum (SC) induced by the filamentation of two typical vortex beams (i.e., Laguerre-Gaussian (LG) and Bessel-Gaussian (BG) beams) in water.
Jiabin Wu   +6 more
doaj   +1 more source

Supercontinuum generation: introduction

open access: yesJournal of the Optical Society of America B, 2019
The article collection in this feature issue presents the most recent experimental and numerical studies of supercontinuum generation in bulk nonlinear media, photonic crystal fibers, and waveguides. It also introduces new results of design and fabrication of these structures with engineered dispersion, development of new diagnostic tools, as well as ...
Audrius Dubietis   +2 more
openaire   +1 more source

High repetition rate green-pumped supercontinuum generation in calcium fluoride

open access: yesScientific Reports, 2021
We compare supercontinuum generation in $$\hbox {CaF}_2$$ CaF 2 crystal under tight and loose focusing of 150 fs, 515 nm second harmonic pulses from an amplified Yb:KGW laser at a repetition rate of 10 kHz.
Vaida Marčiulionytė   +3 more
doaj   +1 more source

Light People: Professor John Dudley spoke about supercontinuum generation and International Day of Light

open access: yesLight: Science & Applications, 2021
Editorial The extreme spectral broadening of light in supercontinuum generation (SCG) is considered by many as the ultimate legacy of nonlinear optics.
Chenzi Guo
doaj   +1 more source

High-efficiency bismuth borate-based optical parametric chirped pulse amplifier with approximately 2.1 mJ, 38 fs output pulses at approximately 2150 nm

open access: yesHigh Power Laser Science and Engineering, 2023
We present a compact and cost-effective mJ-level femtosecond laser system operating at a center wavelength of approximately 2.15 μm. An affordable two-stage ytterbium-doped yttrium aluminum garnet (Yb:YAG) chirped pulse amplifier provides more than 10 mJ,
Augustinas Petrulėnas   +2 more
doaj   +1 more source

1.6-Octave Coherent OAM Supercontinuum Generation in As2S3 Photonic Crystal Fiber

open access: yesIEEE Access, 2020
We design and simulate an all-normal dispersion arsenic trisulfide (As2S3) photonic crystal fiber (PCF) with high nonlinearity to enable a flat and coherent orbital angular momentum (OAM) supercontinuum (SC) generation.
Wenpu Geng   +10 more
doaj   +1 more source

Multi-octave supercontinuum generation from mid-infrared filamentation in a bulk crystal

open access: yesEPJ Web of Conferences, 2013
We present supercontinuum generation pumped by femtosecond mid-infrared pulses in a bulk homogeneous material. The spectrum extends from 450 nm into the midinfrared, and carries high spectral energy density (3 pJ/nm–10 nJ/nm). The supercontinuum has high
Faccio D.   +7 more
doaj   +1 more source

Coherent fiber supercontinuum for biophotonics [PDF]

open access: yesLaser & Photonics Reviews, 2012
AbstractBiophotonics and nonlinear fiber optics have traditionally been two independent fields. Since the discovery of fiber‐based supercontinuum generation in 1999, biophotonics applications employing incoherent light have experienced a large impact from nonlinear fiber optics, primarily because of the access to a wide range of wavelengths and a ...
Haohua, Tu, Stephen A, Boppart
openaire   +2 more sources

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