Results 61 to 70 of about 2,748 (191)

Closing the Loop: High‐Precision 3D Photofabrication in Living Tissues

open access: yesAdvanced Science, EarlyView.
Writing 3D microstructures inside living tissue demands more than laser access; It demands information. Hierarchical sensing captures thermal and mechanical states across pulse‐train, voxel, and structure timescales, feeding a controller that steers the laser in real time.
Amirbahador Zeynali   +2 more
wiley   +1 more source

All-Normal Dispersion Hole-Assisted Silica Fibers for Generation of Supercontinuum Reaching Midinfrared

open access: yesIEEE Photonics Journal, 2016
A design of technologically feasible hole-assisted silica fibers with all-normal dispersion was proposed and optimized for maximum dispersion located, respectively, at 1.55 and 1.97 $\mu\text{m} $.
K. Tarnowski, W. Urbanczyk
doaj   +1 more source

Multimodal Fluorescent MOF@BODIPY Platform: Bridging Sensing and Mechanistic Insight

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT Hybrid metal–organic frameworks (MOFs) that integrate organic chromophores constitute powerful platforms for optical sensing by combining structural order with tunable photophysics. Incorporating photoresponsive chromophores into MOFs enables sensitive probing of guest–framework interactions through well‐defined luminescent signatures. Herein,
Alejandro Cortés‐Villena   +8 more
wiley   +1 more source

Spatial effects in supercontinuum generation in waveguides

open access: yesOptics Express, 2014
An economic, space- and time-resolved method to model ultra-short, intense pulse propagation in waveguides is described. Simulations of supercontinuum generation on a chip demonstrate the utility of the approach. Comparisons with the generalized nonlinear Schrödinger equation elucidate spatial effects, which influence pulse dynamics and the generation ...
J, Andreasen, A, Bahl, M, Kolesik
openaire   +2 more sources

Supercontinuum Generation by Controlling Pitch in Photonic Crystal Fibers

open access: yesSultan Qaboos University Journal for Science
The influence of varying the distance between air holes (pitch) on the geography of solitone propagation through a photonic crystal fiber has been tested. The study depends on the Split-Step Fourier method and the results quantified using MATLAB.
Mohammed Salim Jasim Al-Taie
doaj   +1 more source

Quantification and analysis of the nonlinear effects in spectral broadening through solid medium of femtosecond pulses by neural network

open access: yesPhysical Review Research, 2022
Supercontinuum generation has been widely applied in laser spectroscopy and few-cycle pulse generation. It is composed of complex and unmeasurable nonlinear optical effects, which influence the final broadened spectrum markedly.
Yitan Gao   +7 more
doaj   +1 more source

Interface Engineering in Piezoelectric‐on‐Insulator Platforms: Coupling of Electrons, Photons, and Phonons for Multifunctional Integration

open access: yesElectron, EarlyView.
The underlying interface physics and engineering strategies across key POI material systems, including LiNbO3/Si, LiNbO3/SiC, LiNbO3/diamond, and AlN/diamond, were reviewed. The key engineering strategies such as atomic‐scale bonding optimization, nanostructuring, ultrathin phonon‐bridge interlayers, and ferroelectric domain wall engineering for ...
Yunjia Bao   +6 more
wiley   +1 more source

Research progress on the use of the optical coherence tomography system for the diagnosis and treatment of central nervous system tumors

open access: yesIbrain, Volume 11, Issue 1, Page 3-18, Spring 2025.
With the advantages of high‐resolution imaging, efficient image acquisition, intraoperative real‐time detection, and radiation‐free and noninvasive characteristics, optical coherence tomography (OCT) provides accurate diagnosis and effective intraoperative guidance for the minimally invasive diagnosis and treatment of central nervous system (CNS ...
Jiuhong Li   +10 more
wiley   +1 more source

Distributed measurement of supercontinuum generation along a silica fiber taper using a confocal spectrometer

open access: yesJournal of the European Optical Society-Rapid Publications
A highly sensitive distributed measurement technique is employed to map supercontinuum generation along a tapered silica optical fiber. This technique, which utilizes a confocal Raman micro-spectrometer, relies on analyzing far-field frequency-resolved ...
Haddad Yosri   +4 more
doaj   +1 more source

Controllable growth of two‐dimensional molecular crystals for high‐performance hybrid heterostructure imaging device

open access: yesInfoMat, EarlyView.
Layer‐controlled two‐dimensional perylene‐derivative molecular crystals grow by van der Waals vapor‐phase epitaxy and show near‐unity photoluminescence quantum yields. In hybrid structures with TMDCs, the carrier relaxation can be tuned from charge transfer to Förster resonance energy transfer.
Huijuan Zhao   +12 more
wiley   +1 more source

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