Results 51 to 60 of about 11,003 (245)

Optical properties of As2S3-based suspended-core photonic crystal fiber

open access: yesTạp chí Khoa học Đại học Huế: Khoa học Tự nhiên, 2022
In this paper, the nonlinear properties of photonic crystal fibers (PCF) with As2S3 substrate were analyzed numerically. With the suspended-core design, we achieve an anomalous dispersion regime with one or two zero-dispersion wavelengths, which is flat
Duc Trong Hoang   +2 more
doaj   +1 more source

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

open access: yesHigh 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   +8 more
doaj   +1 more source

Flat, broadband supercontinuum generation at low pulse energies in a dispersion-tailored lead-silicate fibre

open access: yes, 2011
We report flat, broadband supercontinuum generation at low pump pulse energies (69pJ 740fs pulses at 1540nm) in a lead-silicate fibre providing a unique combination of high nonlinearity (820W-1km-1) and a flat near-zero dispersion ...
Horak, P.   +13 more
core   +1 more source

All-fiber optical supercontinuum sources in 1.7-3.2 μm range [PDF]

open access: yes, 2014
We report supercontinuum generation in the 1.7-2.9 μm range with up to 3.08 W of output power and in the range of 1.93-3.18 μm with up to 3.8 W of output power from all-fiber MOPA pulsed systems with Tm-doped fiber mode-locked seed laser.
Dvoyrin, Vladislav   +3 more
core   +1 more source

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

open access: yesJournal 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.   +2 more
doaj   +1 more source

Graded Index Chalcogenide Fibers with Nanostructured Core

open access: yesAdvanced 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   +7 more
doaj   +1 more source

A tunable supercontinuum laser using a digital micromirror device [PDF]

open access: yes, 2012
14/12/12 mebDear Dr Elson, Could you please advice if the version of the paper you uploaded is s peer-reviewed version.14/12/12 meb Academic confirmed peer reviewed ...
Wood, Tobias; id_orcid   +3 more
core   +1 more source

Second‐Harmonic Hyper‐Mie Optical Activity Enables Closed‐Loop Chiral Photochemistry

open access: yesAdvanced Materials, EarlyView.
Nonlinear chiral photochemistry is demonstrated in CdTe/CdO nanohelices, where circularly polarized infrared light both drives and tracks photo‐oxidation via second‐harmonic scattering. This closed‐loop process reveals real‐time structural evolution, including shell fracturing and core exposure, accompanied by a transition from hyper‐Mie to hyper ...
Hoyeon Choi   +6 more
wiley   +1 more source

Temporal fine structure of all-normal dispersion fiber supercontinuum [PDF]

open access: yes, 2021
Experimental characterization of spectro-temporal structure of octave-spanning, coherent fiber supercontinuum pulses is performed and full-field information is retrieved using time-domain ptychography.
Stepniewski, Grzegorz   +23 more
core   +1 more source

Coupling of Er3+ ions and Plasmonic Modes in Vertical Nanocavities for Spectral Broadening in Telecom Bands

open access: yesAdvanced Materials Technologies, EarlyView.
Left: Illustration of the glass & nanostructures system and the NIR emission at 1.5 µm, where the colored spheres represent the Er3+ ions within the doped glass. Right: Representation of the Stark splitting of the 4I13/2 and 4I15/2 manifolds of the Er3+, illustrating how the plasmonic modes facilitate the emission from the broader Stark manifold ...
Gaston Lozano Calderón   +5 more
wiley   +1 more source

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