Results 101 to 110 of about 11,417 (288)

Organoid Brain‐Machine‐Interface Devices for Central Nervous System Repair

Advanced Science, EarlyView.
We envision organoid brain‐machine‐interface (Organoid‐BMI) devices as new biohybrid bidirectional communication pathways to connect the human CNS and the external world for personalized CNS repair and regeneration. ABSTRACT Central nervous system (CNS) repair and regeneration suffer from tremendous clinical challenges due to current limitations in ...
Yantao Xing, Yang Yang, Zichen Hong, Chunhui Tian, Huiyu Chu, Susanne Clara Prokop, Hongwei Cai, Mingxia Gu, Jason Tchieu, Ken Mackie, Feng Guo   +10 more
wiley   +1 more source

Distributed measurements of vibration frequency using phase-OTDR with a DFB laser self-stabilized through PM fiber ring cavity

Results in Physics, 2019
We have evaluated the performance of a phase-sensitive optical time domain reflectometry (φ-OTDR) system for vibration measurements utilizing a conventional telecom DFB laser self-stabilized through an external PM optical fiber ring resonator.
J.L. Bueno Escobedo, J. Jason, C.A. López-Mercado, V.V. Spirin, M. Wuilpart, P. Mégret, D.A. Korobko, I.O. Zolotovskiy, A.A. Fotiadi   +8 more
doaj   +1 more source

Nanosecond channel-switching exact optical frequency synthesizer using an optical injection phase-locked loop (OIPLL)

, 2004
Experimental results are reported on an optical frequency synthesizer for use in dynamic dense wavelength-division-multiplexing networks, based on a tuneable laser in an optical injection phase-locked loop for rapid wavelength locking.
Duser, M, Lovell, T, Seeds, AJ, Renaud, CC, Silva, CFC, Puttnam, B, Bayvel, P   +6 more
core  

Engineering Neuronal Network Connectivity Through Precise and Scalable Electrical Modulation

Advanced Science, EarlyView.
This study presents a scalable all‐electrical method for precise neuronal‐circuit reconfiguration based on high‐density microelectrode arrays. By employing biologically inspired plasticity rules, targeted connectivity changes were successfully induced and quantified across diverse neuronal preparations.
Sreedhar S. Kumar, Yannaël Bossard, Rachel Sava, Tobias Gänswein, Lorenca Sadiraj, Jean‐Samuel Dupré, Manuel Schröter, J. Gray Camp, Fernando Cardes, Julian Bartram, Andreas Hierlemann   +10 more
wiley   +1 more source

Dynamics of soliton self-injection locking in a photonic chip-based microresonator

, 2019
Soliton microcombs constitute chip-scale optical frequency combs, and have the potential to impact a myriad of applications from frequency synthesis and telecommunications to astronomy.
Grigory V. Lihachev (17513517), Valery E. Lobanov (14363733), Junqiu Liu (586465), Igor A. Bilenko (14363736), Nikita Yu. Dmitriev (14365635), Nikita M. Kondratiev (14340561), Wenle Weng (8286915), Andrey S. Voloshin (6328658), Tobias J. Kippenberg (1671697)   +8 more
core   +1 more source

Tunable transform-limited pulse generation using self-injection locking of an FP laser [PDF]

, 1993
Wavelength-tunable, near transform-limited pulses have been generated using a Fabry-Perot laser diode coupled to a fiber loop containing a fiber Fabry-Perot resonator (FFPR) and a polarization controller.
Barry, Liam P., Debeau, J., O\u27Dowd, R.F., R. Boittin, J. Debau, O'Dowd, R.F., R. F. O’dowd, L. P. Barry, Boittin, R.   +8 more
core   +1 more source

Self-injection-locked thin-film regenerative laser amplifier

iScience
Organic lasers based on distributed feedback (DFB) microcavities have been extensively investigated. However, the application of these lasers is limited by their low output power and large beam divergence. Therefore, laser amplifiers are needed to achieve practically applicable laser intensity and controllable lasing modes for far-field applications ...
Yue Liu, Wenwen Wu, Xinping Zhang
openaire   +3 more sources

Microsphere‐Modulated Sensing‐in‐Energy Supercapacitor With Self‐Filtering Ultra‐Large Signal Under High‐g Shocks

Advanced Science, EarlyView.
To overcome severe signal oscillation under extreme impact conditions, this work presents a Sensing‐in‐Energy microdevice which integrates a MEMS inertial structure directly within a supercapacitor electrolyte cavity. Utilizing shock‐driven transient contact and electrolyte damping for signal self‐filtering, it achieves weak‐oscillation, large ...
Zhihao Zheng, Yiqun Wang, Kaiyou Liu, Shancheng Luan, Yajiang Yin, Xiaofeng Wang, Keren Dai, Zheng You   +7 more
wiley   +1 more source

Injection-locking dynamics of two self-pulsing nanocavities optically coupled on photonic integrated circuit

Communications Physics
Pulse generation in nanostructure devices underpins all-optical spiking neurons, on-chip communication, and sampling. Synchronizing such devices provides insights for implementing analog all-optical machines, at the cost of adding complexity to the ...
Gregorio Beltramo, Róbert Horváth, Giuseppe Modica, Rémy Braive   +3 more
doaj   +1 more source

Field‐Free Spin‐Splitting‐Torque Driven Stochastic Neuron Mimicking the Neuromorphic Imagination for High‐Performance Recognition

Advanced Science, EarlyView.
The human brain's imagination, which enables autonomous driving hazard avoidance by completing missing visual information, relies on Gaussian‐stochastic neuron. We report the altermagnetic RuO2 spintronic neurons integrating field‐free switching and intrinsic Gaussian stochasticity, building an all‐spin ANN for high‐quality image repairing and high ...
Junwei Zeng, Baoshan Cui, Xi Guo, Jiahao Liu, Xiaoyu Feng, Liang Fang, Li Xi, Xiaolong Fan, Xiaoxi Liu, Yang Guo   +9 more
wiley   +1 more source