Results 31 to 40 of about 4,483 (188)

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

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

Tạp 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, Nam Hai Tran, Thi Thuy Nguyen   +2 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

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

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

Supercontinuum generation in scintillator crystals. [PDF]

Sci Rep
AbstractWe present a comparative experimental study of supercontinuum generation in undoped scintillator crystals: bismuth germanate (BGO), yttrium orthosilicate (YSO), lutetium oxyorthosilicate (LSO), lutetium yttrium oxyorthosilicate (LYSO) and gadolinium gallium garnet (GGG), pumped by 180 fs fundamental harmonic pulses of an amplified Yb:KGW laser.
Marčiulionytė V, Tamošauskas G, Šutovas M, Dubietis A.   +3 more
europepmc   +5 more sources

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

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

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

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