Results 51 to 60 of about 12,890 (241)

Supercontinuum Shaping via Hollow Core Anti-Resonant Fiber

Photonics, 2023
This study proposes a novel supercontinuum (SC) shaping method using an all-fiber structure with little influence on the time domain and frequency domain of the SC spectrum. An SC is a type of laser source with a broad spectrum.
Mengying Ge, Liang Chen, Meisong Liao, Fei Yu, Dakun Wu, Tianxing Wang, Weiqing Gao, Lili Hu   +7 more
doaj   +1 more source

Defect‐Templated Phase Engineering in Atomically Thin Metals

Advanced Materials, EarlyView.
Graphene defects are transformed from passive imperfections into programmable templates for phase‐selective growth of atomically thin silver. Plasma‐generated boundary defects favor Ag(1), whereas sp3‐rich zero‐layer graphene promotes Ag(2). This defect‐directed intercalation links local graphene chemistry to crystalline phase, electronic structure ...
Arpit Jain, Boyang Zheng, Sawani Datta, Kanchan Ulman, Jakob Henz, Matthew Wei‐Jun Liu, Van Dong Pham, Wen He, Chengye Dong, Li‐Syuan Lu, Alexander Vera, Nader Sawtarie, Wesley Auker, Ke Wang, Bob Hengstebeck, Zachary W. Henshaw, Shreya Mathela, Maxwell Wetherington, William H. Blades, Kenneth Knappenberger, Ursula Wurstbauer, Su Ying Quek, Ulrich Starke, Shengxi Huang, Vincent H. Crespi, Joshua A. Robinson   +25 more
wiley   +1 more source

Mid-infrared supercontinuum generation by tellurite oval-core optical fiber [PDF]

EPJ Web of Conferences
For generating polarization-maintained mid-infrared supercontinuum light, we have simulated, and fabricated tellurite oval-core optical fiber. Polarization-maintained supercontinuum light from 1660 to 2570 nm has been generated from the fabricated ...
Takahata Keita, Nakatani Asuka, de Clermont-Gallerande Jonathan, Suzuki Takenobu, Ohishi Yasutake   +4 more
doaj   +1 more source

Arsenic Sulfide Suspended-core Fiber Simulation with Three Parabolic Air Holes for Supercontinuum Generation

Photonics, 2020
Highly nonlinear suspended-core fibers (SCFs) with tunable dispersion have attracted much attention in the fields of Raman amplification, optical frequency combs, broadband and flat supercontinuum generation (SCG).
Tao Peng, Xunsi Wang, Tiefeng Xu
doaj   +1 more source

Large‐Area Flat Optics Color Routing in Tilted Arrays of 2D Semiconductor Nanostripes

Advanced Optical Materials, EarlyView.
We develop a scalable flat optics platform exploiting self‐organised ion‐beam sputtering and maskless glancing‐angle deposition to fabricate centimetre‐scale arrays of tilted MoS2 nanostripes. The engineered geometry activates Rayleigh anomalies, guided modes, and Mie resonances, enabling highly directional color routing and enhanced light harvesting ...
Simone Di Marco, Daniele Ceneda, Matteo Barelli, Matteo Gardella, Rajesh Chennuboina, Maria C. Giordano, Marco Centini, Francesco Buatier de Mongeot   +7 more
wiley   +1 more source

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

Advanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu, Moritz E. Kleybolte, Colin van Dyck, Sergey I. Vagin, Preeti Gahtori, Antonio Scarpati, Razieh Firouzihaji, Diogo A. Galico, Ulrich S. Schubert, Julianne Gibbs, Alkiviathes Meldrum   +10 more
wiley   +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

Wavefront analysis of a white-light supercontinuum [PDF]

Optics Express, 2018
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_QELS.2018.FW4E.4 CLEO: QELS_Fundamental Science, CLEO QELS, San Jose, California, USA, 13 May 2018 - 18 May 2018; Washington, D.C., USA : OSA, OSA Terchnical Digest (online) 2 pp. (2018).
Kueny, Emma, Calendron, Anne-Laure, Levecq, Xavier, Varkentina, Nadezda, Meier, Joachim, Kärtner, Franz X.   +5 more
openaire   +4 more sources

Linear and Nonlinear Optical Tuning With Sb2S3‐Based Metasurfaces

Advanced Optical Materials, EarlyView.
Sb2S3${\rm Sb}_2{\rm S}_3$ resonant metasurfaces provide large, reconfigurable optical modulation and tunable enhanced nonlinear emission across telecommunication wavelengths. Monolithic structures achieve 92% transmission modulation and 150 nm resonance tuning, while hybridization with silicon enables strong modulation at nearly half the switching ...
Amin Zamani, Meibao Qin, Gabriel Sanderson, Lu Zhang, Sara Moujdi, Qiwei Miao, Ze Zheng, Mohammadhossein Momtazpour, Christopher J. Mellor, Wending Zhang, Ting Mei, Zakaria Mansouri, Lei Xu, Mohsen Rahmani   +13 more
wiley   +1 more source

1.06 µm picosecond pulsed, normal dispersion pumping for generating efficient broadband infrared supercontinuum in meter-length single-mode tellurite holey fiber with high Raman gain coefficient

, 2011
We investigate efficient broadband infrared supercontinuum generation in meter-length single-mode small-core tellurite holey fiber. The fiber is pumped by 1.06µm picosecond pulses in the normal dispersion region.
Shi, Jindan, Feng, Xian, Teh, Peh Siong, Chen, Kangkang, Horak, Peter, Ibsen, Morten, Richardson, David J., Alam, Shaif-ul, Loh, Wei H.   +8 more
core   +1 more source