Results 121 to 130 of about 349,357 (303)

Bioinspired Stabilization of Fluorescent Au@SiO2 Tracers for Multimodal Biological Imaging

Advanced Functional Materials, EarlyView.
This study demonstrates a bioinspired stabilization strategy for fluorescent gold‐silica nanoparticles. Inspired by natural biosilica maturation, high‐temperature calcination transforms the silica shells, preventing dissolution in cell culture media and intracellular environments.
Wang Sik Lee, Henry Lee, Patricia Taladriz‐Blanco, Dimitri Vanhecke, Barbara Rothen‐Rutishauser, Alke Petri‐Fink   +5 more
wiley   +1 more source

Laser Phase Noise Effects and Joint Carrier Phase Recovery in Coherent Optical Transmissions With Digital Subcarrier Multiplexing

IEEE Photonics Journal, 2017
In this paper, we numerically and experimentally investigate the impairments related to laser phase noise in coherent digital subcarrier multiplexing (SCM) systems.
Meng Qiu, Qunbi Zhuge, Mathieu Chagnon, Fangyuan Zhang, David V. Plant   +4 more
doaj   +1 more source

Photonic microwave generation with high-power photodiodes

, 2013
We utilize and characterize high-power, high-linearity modified uni-traveling carrier (MUTC) photodiodes for low-phase-noise photonic microwave generation based on optical frequency division. When illuminated with picosecond pulses from a repetition-rate-
Campbell, Joe, Diddams, Scott A., Fortier, Tara M., Fu, Yang, Hati, Archita, Nelson, Craig, Quinlan, Franklyn, Taylor, Jennifer A.   +7 more
core   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

Phase Noise of the Radio Frequency (RF) Beatnote Generated by a Dual-Frequency VECSEL

, 2013
We analyze, both theoretically and experimentally, the phase noise of the radio frequency (RF) beatnote generated by optical mixing of two orthogonally polarized modes in an optically pumped dual-frequency Vertical External Cavity Surface Emitting Laser (
Alouini, Mehdi, Amili, Abdelkrim El, Baili, Ghaya, Bretenaker, Fabien, De, Syamsundar, Fsaifes, Ihsan, Goldfarb, Fabienne, Pillet, Grégoire, Sagnes, Isabelle   +8 more
core   +3 more sources

From Wafers to Electrodes: Transferring Automatic Optical Inspection (AOI) for Multiscale Characterization of Smart Battery Manufacturing

Advanced Functional Materials, EarlyView.
Automat optical inspection (AOI) techniques in semiconductor fabrication can be leveraged in battery manufacturing, enabling scalable detection and analysis of electrode‐ and cell‐level imperfections through AI‐driven analytics and a digital‐twin framework.
Jianyu Li, Ertao Hu, Wei Wei, Feifei Shi
wiley   +1 more source

High‐Resolution and Real‐Time In Situ Generation of Cellular Spheroids by Laser‐Assisted Bioprinting for Guided Microvascularization

Advanced Functional Materials, EarlyView.
Micro‐injection laser‐assisted bioprinting enables ultrafast and precise patterning of small endothelial cell spheroids by injecting a highly concentrated single‐cell suspension into GelMA/ColMA hydrogels. In co‐culture with fibroblasts, controlled pre‐vasculogenic network formation is obtained at microscale resolution.
Charles Handschin, Katharina Wulz, Clotilde Jugie, Marie‐Laure Stachowicz, Shane Fennell, Aurélien Mazet, Malou Lea, Nathalie Dusserre, Jean‐Christophe Fricain, Hugo Oliveira   +9 more
wiley   +1 more source

Mechanoregulatory Effects of Cell‐Scale Microwells on Epithelial Cell Phenotype

Advanced Functional Materials, EarlyView.
In small polycaprolactone microwells, A549 epithelial cells span well edges, in contrast to cells growing on flat substrates. Focal adhesion sites (yellow) concentrate at topographic boundaries, while cytoskeletal tension (magenta stress fibers) is transmitted to the nucleus (blue), reducing nuclear sphericity.
Ruiwen He, Wang Sik Lee, Phattadon Yajan, Aaron Lee, Mauro Sousa de Almeida, Sandeep Keshavan, Jozef Adamcik, Céline Loussert‐Fonta, Dimitri Vanhecke, Barbara Rothen‐Rutishauser, Alke Petri‐Fink   +10 more
wiley   +1 more source

A 4‐GHz actively driven ultra‐low phase noise mode‐locked fibre laser

Electronics Letters
This work demonstrates an actively driven ultra‐low phase noise mode‐locked laser built with all polarization‐maintaining components. The output of the laser is an optical pulse train at 4‐GHz repetition rate and 1.63‐ps pulse width.
Abdulkadir Yentur, Mehmet Ziya Keskin, Ibrahim Ozdur   +2 more
doaj   +1 more source

Amplitude to phase conversion of InGaAs pin photo-diodes for femtosecond lasers microwave signal generation

, 2011
When a photo-diode is illuminated by a pulse train from a femtosecond laser, it generates microwaves components at the harmonics of the repetition rate within its bandwidth.
A. Bartels, A. Joshi, A.D. Ludlow, B. Lorbeer, D. Kuhl, D.R. Leibrandt, E.N. Ivanov, E.N. Ivanov, G. Santarelli, J. Kim, J. Kim, J. Kim, J. Millo, J. Millo, J. Millo, J. Taylor, J.J. McFerran, K. Wu, K.J. Williams, M. Dentan, M. Lours, M.A. Preciato, M.S. Kirchner, R. Holzwarth, S. Min, S. Seidelin, S. Weyers, S.A. Webster, T. Li, T. Steinmetz, T.M. Fortier, T.M. Ramond, W. Zhang, W. Zhang, W. Zhang, Y. Le Coq, Y.Y. Jiang   +36 more
core   +3 more sources