Results 21 to 30 of about 2,605 (184)

Mid-infrared supercontinuum source and evanescent wave spectroscopy based on multiple tapered sections of a singleoptical chalcogenide glass rod [PDF]

EPJ Web of Conferences, 2023
Mid-infrared supercontinuum sources are particularly important for identifying and characterizing molecules and materials through spectroscopy, thus enabling key applications.
Bailleul Damien, Serrano Esteban, Le Coq David, Boussard-Plédel Catherine, Désévédavy Frédéric, Smektala Frédéric, Kibler Bertrand   +6 more
doaj   +1 more source

Supercontinuum Generation from Airy-Gaussian Pulses in Photonic Crystal Fiber with Three Zero-Dispersion Points

Photonics, 2023
The supercontinuum generation and manipulation of Airy-Gaussian pulses in a photonic crystal fiber with three zero-dispersion points are studied using the split-step Fourier method. Firstly, the spectral evolution of Airy-Gaussian pulses in four photonic
Xinyi Yu, Bing Wen, Yangbao Deng, Chunhui Gao, Jiamou Wei, Saiwen Zhang, Qiuxiang Zhu   +6 more
doaj   +1 more source

Supercontinuum generation: introduction

Journal 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, Arnaud Couairon, Goëry Genty   +2 more
openaire   +1 more source

Coherent, directional supercontinuum generation

Optics Letters, 2017
We demonstrate a novel approach to producing coherent, directional supercontinuum and cascaded dispersive waves using dispersion engineering in waveguides. By pumping in the normal group-velocity dispersion (GVD) regime, with two zero-GVD points to one side of the pump, pulse compression of the first dispersive wave generated in the anomalous GVD ...
Yoshitomo, Okawachi, Mengjie, Yu, Jaime, Cardenas, Xingchen, Ji, Michal, Lipson, Alexander L, Gaeta   +5 more
openaire   +2 more sources

Compact supercontinuum source for the visible using gain-switched Ti:Sapphire laser as pump [PDF]

Journal of the European Optical Society-Rapid Publications, 2006
We demonstrate the use of a miniature gain-switched Ti:Sapphire laser for efficient generation of visible supercontinuum light in a highly nonlinear microstructured optical fiber.
Räikkönen E., Kaivola M., Buchter S. C.   +2 more
doaj   +1 more source

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

IEEE 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, Changjing Bao, Yuxi Fang, Yingning Wang, Yiqiao Li, Zhi Wang, Yan-Ge Liu, Hao Huang, Yongxiong Ren, Zhongqi Pan, Yang Yue   +10 more
doaj   +1 more source

Tunable Ultraviolet Second Harmonics Generation Pumped by Supercontinuum Laser

IEEE Photonics Journal, 2022
This paper presents the first systematic study on second harmonics generation based on a supercontinuum source. We analyzed the effect of the supercontinuum beam diameter and the crystal length to generate second harmonics.
Liang Chen, Meisong Liao, Xia Li, Penwen Kuan, Wanjun Bi, Tianxing Wang, Weiqing Gao, Lili Hu   +7 more
doaj   +1 more source

Supercontinuum generation with optical vortices

Optics Express, 2010
We employ an optical vortex beam for the generation of femtosecond supercontinuum in a solid state medium. We demonstrate that the continuum generation process is initiated by the filamentation of the vortex, resulting in a spatially divergent continuum. Despite the strong self-focusing and the formation of multiple hot-spots along the vortex ring, the
Dreischuh, Alexander, Maleshkov, Georgi, Samoc, Marec, Kivshar, Yuri, Neshev, Dragomir   +4 more
openaire   +3 more sources

Supercontinuum generation in an on-chip silica waveguide [PDF]

Optics Letters, 2014
Supercontinuum generation is demonstrated in an on-chip silica spiral waveguide by launching 180 fs pulses from an optical parametric oscillator at the center wavelength of 1330 nm. With a coupled pulse energy of 2.17 nJ, the broadest spectrum in the fundamental TM mode extends from 936 to 1888 nm (162 THz) at -50  dB from peak.
Oh, DY Oh, Dong Yoon, Sell, D Sell, David, Lee, H Lee, Hansuek, Yang, KY Yang, Ki Youl, Diddams, SA Diddams, SA, Vahala, KJ Vahala, Kerry J.   +5 more
openaire   +3 more sources

Supercontinuum Generation in Media with Sign‐Alternated Dispersion [PDF]

Laser & Photonics Reviews, 2020
AbstractWhen an ultrafast optical pulse with high intensity propagates through transparent material a supercontinuum can be coherently generated by self‐phase modulation, which is essential to many photonic applications in fibers and integrated waveguides.
Haider Zia, Niklas M. Lüpken, Tim Hellwig, Carsten Fallnich, Klaus‐J. Boller   +4 more
openaire   +4 more sources