Results 171 to 180 of about 351,550 (291)

Characterization and Repetition Rate Locking of a 1 GHz Erbium‐Doped ZBLAN Waveguide‐Chip Comb Laser

Laser &Photonics Reviews, EarlyView.
A compact, erbium‐doped ZBLAN waveguide chip mode‐locked laser that self‐starts, delivers stable ultrashort pulses, and repetition rate locked to a 1 GHz radio‐frequency reference. The laser produces near transform‐limited 324 fs pulses and 12 nm bandwidth with low noise and long‐term stability, with potential applications in optical frequency ...
Wen Qi Zhang, Nicolas Bourbeau Hébert, Dale E. Otten, Colin Hall, David G. Lancaster   +4 more
wiley   +1 more source

Predictability of sleep slow oscillation emergence and spatial extent from pre-onset neural dynamics. [PDF]

Sci Rep
Alipour M, van Drongelen W, Malerba P, Voss J, Satzer D.   +4 more
europepmc   +1 more source

Attosecond‐Stable Two‐Dimensional Spectroscopy by a Sagnac‐Based Modulating System and a Sub‐4‐fs Continuum Source

Laser &Photonics Reviews, EarlyView.
A novel optical platform integrates a Sagnac‐based interferometer with a high‐brightness multiple‐plate continuum source to advance two‐dimensional electronic spectroscopy. The robust system delivers octave‐spanning, 3.7‐femtosecond pulses and achieves intrinsic attosecond‐level phase stability without active feedback.
Wei‐Chung Feng, Bo‐Han Chen, Chih‐Hsuan Lu, Howe‐Siang Tan, Shang‐Da Yang, Kai Chen   +5 more
wiley   +1 more source

6-18 GHz High-Efficiency Power Amplifier MMIC Based on Broadband Impedance Matching. [PDF]

Micromachines (Basel)
Liu S, Ma X, Zhang Y, Bian Z, Xu C.
europepmc   +1 more source

Drive‐Efficient GHz‐Rate Binary‐State Updates Enabled by VCSEL Polarization Switching

Laser &Photonics Reviews, EarlyView.
Photonic computing needs a compact node that can hold a binary state and update it fast. A vertical‐cavity surface‐emitting laser biased at its polarization‐switching point could serve as one: its two orthogonal linear polarizations are the two states, and a small electrical drive is enough to move the output from one state to the other at gigahertz ...
Zifeng Yuan, Beibei Lin, Yutong Liu, Wujie Fu, Yuan Gao, Tingting Chen, Aaron Danner   +6 more
wiley   +1 more source

Sleep enhances gamma oscillations in the seizure onset zone and broadband activity in the irritative zone of focal cortical dysplasia. [PDF]

Epilepsia Open
Khazali MF, Schwoon N, Brandt A, Dümpelmann M, Li Hegner Y, Roehri N, Altenmüller DM, San Antonio-Arce V, Reinacher PC, Nakagawa JM, Doostkam S, Demerath T, Urbach H, Schulze-Bonhage A, Heers M.   +14 more
europepmc   +1 more source

Heterogeneous Integration of Multi‐Band Mode‐Locked and Single‐Mode Lasers on an Extended Commercial SiN Platform

Laser &Photonics Reviews, EarlyView.
Micro‐transfer printing enables GaAs and InP gain materials to be integrated on a commercial silicon nitride photonic platform. The resulting chip supports O‐ and C‐band comb and single‐mode lasers, demonstrating a scalable route toward multi‐material, multi‐wavelength, and multifunctional integrated light sources.
Dongbo Wang, Tom Reep, Thi Ngoc Lam Tran, Stijn Poelman, Jing Zhang, Jose Carreira, Camiel Op de Beeck, Stijn Cuyvers, Michael Geiselmann, Maximilien Billet, Dries Van Thourhout, Gunther Roelkens, Bart Kuyken   +12 more
wiley   +1 more source

Broadband variable beamsplitter made of a subwavelength-thick metamaterial. [PDF]

Nanophotonics
Tamayama Y, Shibata Y.
europepmc   +1 more source

Acute and Chronic Local Field Potential Recordings in Dystonia—A Systematic Review

Movement Disorders Clinical Practice, EarlyView.
Abstract Dystonia is a hyperkinetic movement disorder increasingly conceptualized as a disorder of distributed network dysfunction involving the basal ganglia, cortex and cerebellum. Local field potentials (LFPs) recorded from deep brain stimulation (DBS) electrodes provide a unique opportunity to characterize the electrophysiological signatures ...
Jack Horan, Eoghan Donlon, Aoibheann Gill, Rosalyn Moran, Conor Fearon, Richard A. Walsh, Catherine Moran   +6 more
wiley   +1 more source

Same geometry, different dynamics: what uncontrolled manifold (UCM) analysis misses about motor control. [PDF]

Exp Brain Res
Mangalam M, Stergiou N.
europepmc   +1 more source