Results 151 to 160 of about 6,304,985 (297)

Impact of the frequency drift of a laser cooler on the phase noise of the microcomb repetition frequency

 LASE, 2025, San Francisco, CaliforniaWe study the repetition frequency phase-noise in an auxiliary laser cooler assisted soliton microcomb formed in a high-Q Si₃N₄ microresonator.
Sykes, Patrick, Zhou, Weimin, Cahill, James P., Mahmood, Tanvir, Menyuk, Curtis   +4 more
core   +1 more source

Percolation‐Driven β‐Relaxation Enables Resonant Acceleration of Crystallization in Amorphous Phase‐Change Materials

Advanced Materials, EarlyView.
Mobile‐atom percolation underlying β‐relaxations fundamentally dictates the crystallization pathways of phase‐change materials. High‐frequency ultrasonic excitation dynamically modulates this critical mobility percolation network, substantially accelerating the crystallization process.
Yu‐Yao Liu, Liang Gao, Jun‐Ying Jiang, Yiming Zhou, Jan Luebben, Di Zhao, Xiaoling Lu, Maximilian J. Müller, Ulrich Boettger, Jiang‐Jing Wang, Hai‐Bin Yu, Shuai Wei   +11 more
wiley   +1 more source

Chip-scale modulation-free laser stabilization using vacuum-gap micro-Fabry-Pérot cavity. [PDF]

Sci Adv
Idjadi MH, Cheng H, Ashtiani F, Li B, Kim K, Jin N, Quinlan F, Rakich PT.   +7 more
europepmc   +1 more source

Ferrocene‐Based Self‐Assembled Monolayers Enable Ultra‐High Specific Detectivity in Perovskite Photodetectors

Advanced Materials, EarlyView.
We report perovskite photodetectors with record specific detectivities exceeding 1013 Jones with a novel molecular design strategy to functionalize self‐assembled monolayers (SAMs) with ferrocene (Fc) derivatives. Fc‐SAM‐based devices also exhibit strong operational stability and enable data transmission rates exceeding 1 Mbps in a LiFi system ...
Edoardo Angela, William D. J. Tremlett, Francesco Vanin, William J. O. Rodriguez Kazeem, Zhuoran Qiao, Davide Nodari, Francesco Furlan, Zonglong Zhu, Martyn A. McLachlan, Nicholas J. Long, Nicola Gasparini   +10 more
wiley   +1 more source

High-energy low-repetition broadband ultrafast lasers empowered by hollow-core fiber. [PDF]

Nat Commun
Dang L, Zhang X, Zhuang Y, Zhu W, Zhu S, Shi Y, Li F, Wang P, Huang D.   +8 more
europepmc   +1 more source

Plasmon‐Enhanced Second‐Harmonic Generation in Atomically Thin Crystalline Silver Nanostructures

Advanced Materials, EarlyView.
Atomically thin crystalline silver films combine vertical quantum confinement with lateral plasmonic field enhancement to boost second‐harmonic generation. Nanoribbon and nanotriangle arrays enable geometry‐tunable infrared plasmon resonances, producing strong SHG from deeply subwavelength metallic volumes compatible with silicon‐based nanophotonics ...
Saad Abdullah, Philipp K. Jenke, Andrew P. Weber, Álvaro Rodríguez Echarri, Vahagn Mkhitaryan, Fadil Iyikanat, Frederik Schiller, Philip Walther, J. Enrique Ortega, Lee A. Rozema, F. Javier García de Abajo   +10 more
wiley   +1 more source

Multimodal locking-enabled robust and day-scale low-repetition-rate soliton microcomb for high-precision metrology. [PDF]

Light Sci Appl
Tang J, Yang J, Yan E, Huang G, Yin K, Tian D, Lei X, Huang J, Yang M, Ding H, Yan S, Wei K, Zhu L, Wang G, Jiang T.   +14 more
europepmc   +1 more source

Phase Noise in DFB Lasers for Different Optical Injection Locking Regimes

We investigate the locking behavior of a DFB laser as a function of master laser wavelength and intensity. We find significantly more phase noise reduction when injecting with a negative frequency offset. This can be replicated in numerical modelling and
Berisha, Arbnor, Schell, Martin, Runge, Patrick   +2 more
core   +1 more source

Efficient in‐Plane Exciton Transport in a Discontinuous Layered Lead‐Bromide Perovskite

Advanced Materials, EarlyView.
A new class of two‐dimensional lead‐bromide perovskite based on monovalent 4‐aminomethylbenzoic acid cations is presented, featuring a discontinuous inorganic layer. Despite the discontinuous lattice, transient photoluminescence microscopy demonstrates efficient though strongly anisotropic in‐plane exciton transport.
Raquel Utrera‐Melero, Antonella Cutrupi, Ivan Rivilla, Davide Spirito, E. Carolina Sañudo, Juan Cabanillas‐González, Antonio I. Fernández‐Domínguez, Beatriz Martín‐García, Jose Sánchez Costa, Ferry Prins   +9 more
wiley   +1 more source

Single-Pulse Femtosecond Laser 3D Multi-Foci Light-Field Engineering via Multi-Layer Noise Threshold Filtering. [PDF]

Adv Sci (Weinh)
Wu S, Wang R, Jiang L, Tian M, Yuan Y, Wu J, Zhao L, Zhang R, Ning Z, Li X.   +9 more
europepmc   +1 more source