Results 71 to 80 of about 12,890 (241)

On-Chip Supercontinuum Generation Pumped by Short Wavelength Fiber Lasers

open access: yesPhotonics
Supercontinuum (SC) generation pumped by fiber lasers with short wavelengths below 2.0 μm is important since it can provide a compact light source for various applications.
Peng Chen   +15 more
doaj   +1 more source

Unlocking Long‐Lived Charge‐Separated State in Pentamethine Cyanine Based on Anionic Hofmeister Effect for Photodynamic Immunotherapy

open access: yesAdvanced Science, EarlyView.
Based on the anionic Hofmeister effect, a universal strategy of incorporation of stereo‐π anion BPh4− into a series of Cy5 skeletons to unlock long‐lived charge‐separated states was reported, wherein the weak electronic coupling and low charge recombination driving force hinder the charge recombination process, elevating the oxygen‐independent ROS ...
Xuan Zhao   +9 more
wiley   +1 more source

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

Improved flatness of a supercontinuum at 1.55 microns in tapered microstructured optical fibres

open access: yes, 2009
Supercontinuum (SC) generation occurs when high-power ultrashort optical pulses propagate through a nonlinear optical medium and it has been investigated since 1970s.
Broderick, Neil G.R., Vukovic, Natasha
core   +2 more sources

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

Highly Nonlinear Multimode Tellurite Fibers: From Glass Synthesis to Practical Applications in Multiphoton Imaging

open access: yesAdvanced Photonics Research, 2023
Herein, a tellurite multimode optical fiber with a rectangular step‐index core to combine easy coupling of the pump power with the exceptionally cubic nonlinearity of such type of glass is developed.
Marianne Evrard   +12 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

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

Supercontinuum generation in mid-IR using chalcogenide and germanate nonlinear fiber [PDF]

open access: yes, 2013
We demonstrate mid-infrared (mid-IR) supercontinuum generation with bandwidth from 2 to 2.8 μm at 20 dB below the peak in nonlinear step-index chalcogenide fiber using femtosecond mid-IR pulses directly from the oscillator.
Dvoyrin, Vladislav   +13 more
core   +1 more source

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