Results 71 to 80 of about 2,608 (177)

Supercontinuum generation in an imaging fiber taper

Optics Express, 2006
We report on supercontinuum generation in individual fibers of a commercial Schott imaging fiber taper. Supercontinuum spectrum covering a wavelength range from about 500 nm to 1 mum was obtained. Unlike conventional approaches which use either a single micro-structured photonic crystal fiber (PCF) or an individual fiber or PCF taper, the availability ...
Kebin, Shi, Fiorenzo G, Omenetto, Zhiwen, Liu   +2 more
openaire   +2 more sources

In vivo differentiation of scarring alopecia using line‐field confocal optical coherence tomography: a pilot study

JDDG: Journal der Deutschen Dermatologischen Gesellschaft, EarlyView.
Summary Background and Objectives: Diagnosing cicatricial alopecia is challenging. Even with histology, a definitive diagnosis cannot always be made. Line‐field confocal optical coherence tomography (LC‐OCT), a non‐invasive imaging method with high resolution used in vivo, has proven helpful in diagnosing scarring alopecia.
Marie‐Christine Nutz, Julia Welzel, Daniela Hartmann, Lars E. French, Maximilian Deußing, Elke C. Sattler   +5 more
wiley   +1 more source

Supercontinuum generation in quasi-phasematched waveguides

Optics Express, 2011
We numerically investigate supercontinuum generation in quasi-phase-matched waveguides using a single-envelope approach to capture second and third order nonlinear processes involved in the generation of octave-spanning spectra. Simulations are shown to agree with experimental results in reverse-proton-exchanged lithium-niobate waveguides.
C R, Phillips, Carsten, Langrock, J S, Pelc, M M, Fejer, I, Hartl, Martin E, Fermann   +5 more
openaire   +2 more sources

Hyperspectral tomographic diffractive microscopy: Development and applications

Journal of Microscopy, EarlyView.
Abstract Tomographic Diffractive Microscopy (TDM) provides label‐free three‐dimensional imaging of transparent samples with resolution surpassing confocal limits. At IRIMAS, successive instrumental developments since 2009 have enhanced TDM capabilities through transmission, reflection, isotropic, polarisation‐sensitive, and dual‐view configurations ...
Leonardo Pestana Legori, Carlos Alberto Chacón Ávila, Matthieu Debailleul, Nicolas Verrier, Olivier Haeberlé   +4 more
wiley   +1 more source

Supercontinuum generation with a chirped-pulse oscillator

Optics Express, 2009
We demonstrate the generation of a high power ultrabroadband supercontinuum by coupling the uncompressed pulses from a Ti:Sapphire Chirped-pulse oscillator into a photonic crystal fibre that exhibits a highly anomalous dispersion at the centre wavelength of the laser.
A, Fuerbach, C, Miese, W, Koehler, M, Geissler   +3 more
openaire   +2 more sources

Dipole‐Manipulated Built‐In Electric Field Enables Ultrafast Charge Separation in Perylene Diimide Polymers for Photoelectrochemical Water Splitting

Advanced Science, Volume 13, Issue 43, 3 August 2026.
Molecular dipole engineering in dendritic perylene diimide polymers through nitrogen‐rich heterocyclic linkers amplifies the built‐in electric field, enabling sub‐picosecond charge separation and efficient multi‐electron accumulation. This structure–dynamics–performance relationship establishes a versatile design strategy for high‐performance organic ...
Ying‐Xin Qiao, Zicong Situ, Yi‐Jing Chen, Shuo‐Xiang Liu, Jing‐Lan Zhang, Xingqing Li, Luo‐Han Xie, Si‐Hang Xie, Qing‐Xiao Tong, Andong Xia, Zhuoran Kuang, Jing‐Xin Jian   +11 more
wiley   +1 more source

Comparison of optical features in nitrobenzene-core photonic crystal fiber with hexagonal and square lattices in the claddings

Communications in Physics
This paper proposes two novel photonic crystal fibers (PCFs) with a nitrobenzene core, designed using hexagonal and square lattice structures. The characteristics of the PCFs were numerically analyzed in detail and compared to selecting the proposed ...
Trong Dang Van, Bao Tran Le Tran, Ben Chu Van, Lanh Chu Van   +3 more
doaj   +1 more source

Supercritical Angle Fluorescence and Raman Techniques in Biophotonics

Laser &Photonics Reviews, Volume 20, Issue 15, 7 August 2026.
Supercritical angle fluorescence (SAF) microscopy and supercritical angle Raman (SAR) spectroscopy have emerged as powerful tools in the field of biophotonics, enabling high‐resolution imaging and spectroscopy of biological specimens near interfaces. This review article provides a comprehensive overview of the principles, techniques, applications, and ...
Subir Das, Nathalia Simea Münch, Stefan Seeger   +2 more
wiley   +1 more source

Invited Article: Multiple-octave spanning high-energy mid-IR supercontinuum generation in bulk quadratic nonlinear crystals

APL Photonics, 2016
Bright and broadband coherent mid-IR radiation is important for exciting and probing molecular vibrations. Using cascaded nonlinearities in conventional quadratic nonlinear crystals like lithium niobate, self-defocusing near-IR solitons have been ...
Binbin Zhou, Morten Bache
doaj   +1 more source

Octave‐Spanning, Deterministic Single Soliton Generation in 4H‐Silicon Carbide‐On‐Insulator Microring Resonators

Laser &Photonics Reviews, Volume 20, Issue 15, 7 August 2026.
The miniaturization of metrology and precision spectroscopy systems requires robust, turn‐key microcombs with broad bandwidth, low threshold, and high efficiency. Here, high‐Q, dispersion‐engineered microresonators in a high‐confinement nonlinear SiC platform, combined with waveguide‐enabled thermal management and laser cooling, enable deterministic ...
Yi Zheng, Liping Zhou, Chengli Wang, Yanjing Zhao, Ailun Yi, Kresten Yvind, Xin Ou, Minhao Pu   +7 more
wiley   +1 more source