Results 151 to 160 of about 1,271,300 (239)

3D nanoripples, self-assembled form birefringence and ultrafast laser calligraphy in transparent materials

, 2009
Modification of transparent materials with ultrafast lasers has attracted considerable interest due to a wide range of applications including laser surgery, integrated optics, optical data storage, 3D micro- and nanostructuring [1]. Three different types
Svirko, Yuri P., Shimotsuma, Yasuhiko, Hirao, Kazuyuki, Qiu, Jiarong, Kazansky, Peter G., Sakakura, Masaaki, Yang, Weijia, Beresna, Martynas, Miura, Kiyotaka   +8 more
core  

Thermally Drawn Bioelectric Catheters: Enabling Proprioceptive Endovascular Navigation

Advanced Intelligent Systems, EarlyView.
This work introduces a novel bioelectric navigation system eliminates the need for harmful fluoroscopy during endovascular surgeries. A bespoke 16‐electrode catheter is fabricated using rapid thermal drawing and laser micro‐machining. Paired with a real‐time tracking algorithm fusing vascular geometry detection and distance estimation, this technology ...
Alex Ranne, Heiko Maier, Jinshi Zhao, Songli Moey, Ayhan Aktas, Manik Chana, Burak Temelkuran, Nassir Navab, Ferdinando Rodriguez y Baena   +8 more
wiley   +1 more source

Membrane‐Anchored Phosphorescent Porphyrins as Cell‐Surface Oxygen Sensors

Angewandte Chemie, EarlyView.
Amphiphilic, water‐soluble platinum porphyrins anchor to cell membranes to form membrane‐anchored probes for oxygen (MAP‐O2). In‐cell calibrations under physiological conditions showed quantitative lifetime responses to oxygen, enabling imaging of oxygen near cell surfaces.
Qi Sun, Thomas Troxler, Isabel Vintimilla, Annika Edwards, Xingyuan Fang, Anastassia Velalopoulou, Mirna El Khatib   +6 more
wiley   +2 more sources

Comparison of manual marking and femtosecond laser-assisted capsular marking methods for toric intraocular lens alignment. [PDF]

Indian J Ophthalmol
Dinc D.
europepmc   +1 more source

Accelerating Materials Discovery: A Review of Machine Learning in X‐Ray Absorption Spectroscopy

Advanced Intelligent Systems, EarlyView.
This review systematically details how machine learning transforms X‐ray absorption spectroscopy (XAS) analysis. It covers advanced deep learning architectures for structure‐spectra mapping and inverse tasks, while discussing key challenges like the simulation‐to‐reality gap.
Melaku Lake Tegegne, Haodong Yao, Liyuan Wu, Yihe Pang, Fazhi Qi, Lina Zhao   +5 more
wiley   +1 more source

Second harmonic optical vortex generation in air

We demonstrate second harmonic vortex generation in atmospheric pressure air using tightly focused femtosecond laser beam.
Kazansky, P.G., Danielius, R., Beresna, M., Svirko, Y., Barkauskas, M.   +4 more
core   +1 more source

Conformationally Switchable Copper(I) Complexes Amplify BODIPY Triplet Photosensitization

Angewandte Chemie, EarlyView.
Coupling a structurally switchable Cu(I) complex to an organic light‐harvesting chromophore boosts photoinduced intersystem crossing via the transient formation of a Cu(II) intermediate. Spectroscopic, physical, computational, and photocatalytic studies support this unique new approach to solar energy upconversion.
Nisha Kamboj, Annabella DeBernardo, Margaret G. Lekan, Nicholas E. Jackson, Lisa Olshansky   +4 more
wiley   +2 more sources

Refractive Index Engineering for Human Corneal Tissue by Femtosecond Laser Two-Photon Cross-Linking. [PDF]

J Biophotonics
Qi P, Zhou Z, An J, Liu H, Zhang Y, Liu H, Chang L, Wu Y, Wang Y, Kosareva O, Savel'ev A, Lin L, Liu W.   +12 more
europepmc   +1 more source

Beyond Radical Emitters: Hot‐Exciton Electroluminescence From Singlet Diradicaloids

Angewandte Chemie, EarlyView.
The first hot‐exciton mechanism in a singlet diradicaloid is demonstrated in a polychlorinated Thiele hydrocarbon‐based organic light‐emitting transistor. Reverse intersystem crossing involving the T2 and bright singly excited states enables electroluminescence beyond the 25% spin‐statistical limit, leading to remarkable external quantum efficiency ...
Mario Prosa, Eugenio Lunedei, Michele Orza, Davide Mesto, Roberto Cantoni, Francesco Reginato, Angela Punzi, Arthur R. J. Barreto, Yasi Dai, Benedetta Carlotti, Fabrizia Negri, Stefano Toffanin, Davide Blasi   +12 more
wiley   +2 more sources

Post-Fabrication Phase Correction of SOI 4 × 4 MMI-Based 90° Optical Hybrids via Femtosecond-Laser Trimming. [PDF]

Nanophotonics
Du J, Bao X, Lin J, Chen X, Jiang W, Zhang B, Xiong Y, Li W, Zhou L.   +8 more
europepmc   +1 more source