Results 31 to 40 of about 2,608 (177)

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

EPJ 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., Hemmer M., Baudisch M., Thai A., Silva F., Austin Dane R., Couairon A., Biegert J.   +7 more
doaj   +1 more source

Supercontinuum generation in high-index doped silica photonic integrated circuits under diverse pumping settings [PDF]

EPJ Web of Conferences
Recent years have witnessed remarkable progress in enhancing the supercontinuum (SC) generation in highly nonlinear photonic integrated waveguides. In this study, we conduct a comprehensive investigation into supercontinuum (SC) generation in high-index ...
Khallouf C., Hoang V. T., Fanjoux G., Little B., Chu S. T., Moss D. J., Morandotti R., Dudley J. M., Wetzel B., Sylvestre T.   +9 more
doaj   +1 more source

Two-Octave Supercontinuum Generation of High-Order OAM Modes in Air-Core As₂S₃ Ring Fiber

IEEE Access, 2020
In this work, we design and simulate an air-core As2S3 ring fiber for high-order orbital angular momentum (OAM) supercontinuum generation. We show that the chromatic dispersion of the ring fiber can be substantially tailored by proper optimization of the
Yingning Wang, Changjing Bao, Jicong Jiang, Yuxi Fang, Wenpu Geng, Zhi Wang, Weigang Zhang, Hao Huang, Yongxiong Ren, Zhongqi Pan, Yang Yue   +10 more
doaj   +1 more source

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

Stimulated Supercontinuum Generation

Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009
We demonstrate active control over optical rogue waves with a weak optical seed. With this effect, we stimulate supercontinuum generation, resulting in greatly enhanced stability and coherence. The phenomenon also facilitates all-optical three-terminal devices.
Solli, Daniel R., Ropers, Claus, Jalali, Bahram   +2 more
openaire   +2 more sources

Active Supercontinuum Injection for Optical Parametric Chirped Pulse Amplification

IEEE Photonics Journal, 2017
The anticipant supercontinuum is a prerequisite for the pump seed generation in an optical parametric chirped pulse amplification (OPCPA) system. To achieve the anticipant supercontinuum, we develop an active method operated in a two-level control scheme
Jie Mu, Kainan Zhou, Xiao Wang, Yi Guo, Yanlei Zuo, Xiaodong Wang, Na Xie, Song Zhou, Qihua Zhu, Jingqin Su, Lei Zhao, Xiaoming Zeng   +11 more
doaj   +1 more source

Tailored Diketopyrrolopyrrole Derivatives for Efficient Deep‐Red Organic Lasers

Advanced Functional Materials, EarlyView.
Tailored diketopyrrolopyrrole derivatives exhibit high stable amplified spontaneous emission with single or dual bands. Incorporated into distributed‐feedback lasers based on one‐ and two‐dimensional dichromated‐gelatin diffractive gratings, these materials provide a robust, flexible platform for integrated organic deep‐red light sources. ABSTRACT Deep‐
Pablo Pasqués‐Gramage, Abelardo Sánchez‐Oliva, Álex Farrando‐Pérez, Pedro G. Boj, M. Victoria Gómez, Ana M. Rodríguez, Pilar Prieto, Rafael Muñoz‐Mármol, Andrew J. Musser, Iván Torres‐Moya, María A. Díaz‐García   +10 more
wiley   +1 more source

Ultra-wideband and coherent supercontinuum generation (near and mid-infrared) in dispersion flattened ZnGeP2 photonic crystal fiber

Alexandria Engineering Journal, 2023
Transmission window is a major concern in selecting the background material of photonic crystal fiber for supercontinuum generation. In this work, Zinc-Germanium Diphosphide (ZnGeP2) based single material photonic crystal fiber has been proposed with ...
Shah Md. Salimullah, Mohammad Faisal
doaj   +1 more source

Electroactive 3D Porous Graphene Foam Impedimetric Biosensor for Ultrasensitive Detection of MCF‐7‐Cells‐Derived Extracellular Vesicles in Human Serum

Advanced Materials Technologies, EarlyView.
A label‐free impedimetric biosensor based on electroactive 3D porous graphene foam enables ultrasensitive and selective detection of CD81 protein and MCF‐7 cell‐derived extracellular vesicles in human serum. Detection limits of 0.048 fg/mL for CD81 and ∼24 EVs/mL are achieved, demonstrating a robust platform for selective, label‐free, and ...
Michael Robert Furness, Ashish Kalkal, Tia Wardlaw, Jessica Valli, Suresh Chandra Baral, Pablo Lozano Sanchez, Marco Caffio, Sudhagar Pitchaimuthu, Olga Oikonomidou, Jason Webber, Nick R. Leslie, Anitha Devadoss   +11 more
wiley   +1 more source

Perspective: Hollow Core Optical Fibres for Ultraviolet and Visible Wavelengths

Advanced Science, EarlyView.
Hollow core optical fibres bypass material constraints that limit optical fibres at ultraviolet and visible wavelengths. However, their challenging fabrication has limited their development, and significant gains in performance remain possible. In this perspective we outline approaches to enable the next generation of fibres for shorter wavelengths ...
Robbie Mears, Kerrianne Harrington, Jonathan C. Knight, William J. Wadsworth, James M. Stone, Tim A. Birks   +5 more
wiley   +1 more source