Results 41 to 50 of about 12,890 (241)

Generation of a high-power mid- and long-wave supercontinuum laser in a large-mode-area fluorotellurite-chalcogenide fiber cascade system

High Power Laser Science and Engineering
We report a high-power broadband flat supercontinuum laser system based on a large-mode-area (LMA) low-loss fluorotellurite fiber cascaded with an LMA chalcogenide fiber.
Xuelian Yang, Yamin Liu, Linjing Yang, Chuanfei Yao, Xuan Wang, Guochuan Ren, Xunsi Wang, Kai Jiao, Pingxue Li   +8 more
doaj   +1 more source

Spectral confocal reflection microscopy using a white light source [PDF]

Journal of the European Optical Society-Rapid Publications, 2008
We present a reflection confocal microscope incorporating a white light supercontinuum source and spectral detection. The microscope provides images resolved spatially in three-dimensions, in addition to spectral resolution covering the wavelength range ...
Booth Martin J., Juškaitis Rimas, Wilson Tony   +2 more
doaj   +1 more source

Graded Index Chalcogenide Fibers with Nanostructured Core

Advanced Photonics Research, 2021
Fabrication of graded index (GRIN) fibers is for a long time limited to ion‐exchange, modified chemical vapour deposition (MCVD) or other deposition techniques. Recently, the nanostructuring of an all‐solid core in fibers has proven to be a versatile and
Marcello Meneghetti, Xavier Forestier, Christian R. Petersen, Rafal Kasztelanic, Mariusz Klimczak, Ole Bang, Ryszard Buczyński, Johann Troles   +7 more
doaj   +1 more source

Coherent fiber supercontinuum for biophotonics [PDF]

Laser & 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

A New Strategy for Creating Quantum Light Emitters Via Post‐Growth Hydrogen‐Ion Irradiation of III‐V Nanowires

Advanced Functional Materials, EarlyView.
A post‐growth method is demonstrated to realize energy‐tunable quantum emitters in GaAs/GaAsN/GaAs core–multishell nanowires on a Si substrate. By combining the N‐induced bandgap reduction with H‐ion irradiation, the GaAsN potential landscape is engineered, enabling isolated, narrow emission lines that function as single‐photon sources with g(2)(0) ∼ 0.
Akant Sagar Sharma, Paolo De Vincenzi, Nadine Denis, Francesca Santangeli, Riccardo Pallucchi, Harikrishnan Gopalakrishnan, Elena Blundo, Antonio Polimeni, Marco Felici, Fumitaro Ishikawa, Marta De Luca   +10 more
wiley   +1 more source

High-nonlinearity dispersion-shifted lead-silicate holey fibers for efficient 1-µm pumped supercontinuum generation [PDF]

, 2006
This paper reports on the recent progress in the design and fabrication of high-nonlinearity lead-silicate holey fibers (HFs). First, the fabrication of a fiber designed to offer close to the maximum possible nonlinearity per unit length in this glass ...
Leong, J.Y.Y., Asimakis, S., Moore, R., Richardson, D.J., K.E. Frampton, J.H.V. Price, R.C. Moore, H. Ebendorff-Heidepriem, Price, J.H.V., S. Asimakis, D.J. Richardson, Monro, T.M., Moore, R.C., X. Feng, Richardson, D., Frampton, K.E., Petropoulos, P., Monro, T., Ebendorff-Heidepriem, H., Price, J., T.M. Monro, V. Finazzi, Frampton, K., Leong, J., Finazzi, V., J.Y.Y. Leong, P. Petropoulos, Feng, X.   +27 more
core   +1 more source

Defect‐Mediated Inelastic Light Scattering by Infrared Phonons in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
Optically active defects in hexagonal boron nitride enable inelastic stimulated light scattering mediated by infrared‐active phonons, relaxing conventional Raman selection rules. Defect engineering enhances the Stokes‐conversion process and activates both TO‐ and LO‐phonon scattering channels.
Prabhdeep Singh, Bharti Garg, Maximilian Black, Masoud Taleb, Nahid Talebi   +4 more
wiley   +1 more source

Supercontinuum in integrated photonics: generation, applications, challenges, and perspectives

Nanophotonics, 2023
Frequency conversion in nonlinear materials is an extremely useful solution to the generation of new optical frequencies. Often, it is the only viable solution to realize light sources highly relevant for applications in science and industry.
Brès Camille-Sophie, Della Torre Alberto, Grassani Davide, Brasch Victor, Grillet Christian, Monat Christelle   +5 more
doaj   +1 more source

Mid-Infrared Highly Efficient, Broadband, and Flattened Dispersive Wave Generation via Dual-Coupled Thin-Film Lithium-Niobate-on-Insulator Waveguide

Applied Sciences, 2022
We designed a structure of dual-coupled ridge waveguide in thin-film lithium-niobate-on-insulator (LNOI) and numerically studied the highly efficient, broadband, and flattened dispersive wave-enhanced supercontinuum generation in the mid-infrared region.
Jing Jia, Zhe Kang, Qiangsheng Huang, Sailing He   +3 more
doaj   +1 more source

Self‐Powered, Ultra‐Sensitive InGaAs/ITO Nanowire Radial Junction Infrared Photodiode for Low Flux Imaging at Room Temperature

Advanced Functional Materials, EarlyView.
This study reports a self‐powered InGaAs nanowire photodetector achieving single‐photon‐level sensitivity in the shortwave infrared at non‐cryogenic temperatures. The device demonstrates high‐speed imaging capabilities even under extremely low‐flux conditions.
Kosala Dhanawansha, Chaohao Chen, Zhe Li, Tuomas Haggren, Dawei Liu, Yang Yu, Baolei Liu, Sanjay Krishna, Hark H. Tan, Chennupati Jagadish, Lan Fu   +10 more
wiley   +1 more source