Results 101 to 110 of about 279,783 (265)

Light‐Induced Field‐Tunneling Synapses in Solution‐Processed Van Der Waals Heterostructures for Scalable, Retina‐Inspired Optical Sensing

Advanced Functional Materials, EarlyView.
A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam, Jihyun Kim, Soobeen Ji, In Soo Kim, Sejin Kim, Eungseon Yeon, Do Kyung Hwang, Iva Plutnarová, Zdeněk Sofer, Sang Min Won, Joohoon Kang   +10 more
wiley   +1 more source

in a semiconductor laser with optical injection

Physical Review Letters, 2002
A deterministic mechanism for multipulse excitability that appears to be experimentally accessible in a real laser is presented. Codimension-two homoclinic Belyakov bifurcations and an ensuing cascade of n-homoclinic bifurcation tongues are described as responsible for this phenomenon.
Wieczorek, S., Krauskopf, B., Lenstra, D.   +2 more
openaire   +1 more source

Memristive‐Gated RC‐Delay Synaptic Transistors for Time‐Encoded Analog in‐Memory Computing

Advanced Functional Materials, EarlyView.
A Memristive‐Gated Transistor for Time‐Encoded Analog In‐Memory Computing — By exploiting the RC delay of a self‐rectifying interface‐type memristor, nonlinear I–V distortion is structurally bypassed, enabling 3‐bit nonvolatile memory, spike‐timing‐based analog encoding, and hardware‐calibrated reservoir‐computing validation within a unified device ...
Yun‐Seo Shin, Eunjoo Yoo, Ki‐Hoon Son, Hyun‐Sik Kim, Dae‐Hee Han, Jeong Hyeon Son, Seung Hwan Lee, Hong‐Sub Lee   +7 more
wiley   +1 more source

Bio‐Inspired Artificial Ionic Mechanoreceptor

Advanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari, Jeppe Don, Lasse A. N. Pedersen, John Noee, Rassoul Tabassian   +4 more
wiley   +1 more source

Ultra-low noise optical injection locking amplifier with AOM-based coherent detection scheme. [PDF]

Sci Rep, 2018
Feng Z, Yang F, Zhang X, Chen D, Wei F, Cheng N, Sun Y, Gui Y, Cai H.   +8 more
europepmc   +1 more source

Programmable Soft Actuator with Multi‐Responsiveness Based on Conductive MOF‐Liquid Crystal Polymer Composite

Advanced Functional Materials, EarlyView.
A sequential dual‐alignment strategy independently programs the orientation of conductive metal‐organic framework (c‐MOF) microrods and liquid crystals within a composite film. This approach creates an asymmetric bilayer structure that enables precise, multi‐responsive actuation.
Taegyun Hong, Geunho Kim, Changjae Lee, Sarang Lee, Jesse G. Park, Dong Ki Yoon   +5 more
wiley   +1 more source

Stabilization of the vertical cavity surface emitting laser subject to asymmetrical triangular current modulation

Физика волновых процессов и радиотехнические системы, 2018
We investigate the effect of external optical injection on the dynamics of the vertical cavity surface emitting laser under asymmetrical triangular modulation theoretically.
A.A. Krents, N.E. Molevich
doaj  

Locking bandwidth of two laterally-coupled semiconductor lasers subject to optical injection. [PDF]

Sci Rep, 2018
Li N, Susanto H, Cemlyn BR, Henning ID, Adams MJ.   +4 more
europepmc   +1 more source

Nanoconfinement‐Induced Second‐Harmonic Circular Dichroism via Chirality–Ferroelectric Coupling

Advanced Functional Materials, EarlyView.
Nanoconfinement of a ferroelectric nematic liquid crystal within a chiral nanoporous sponge yields an enhanced second‐harmonic generation circular dichroism (|gSHG–CD| ≈ 1.1). Polarization‐resolved analysis suggests an additional magnetic‐dipole‐associated nonlinear contribution under nanoconfinement, highlighting chirality–ferroelectric coupling as a ...
Jae‐Jin Lee, Hiroya Nishikawa, Tae‐Woong Moon, Dong‐Ha Kim, Fumito Araoka, Suk‐Won Choi   +5 more
wiley   +1 more source

Variotherm assisted precision injection molding of plastic optical lenses based on improved cooling stage control model

Scientific Reports
Precision injection-molded plastic optical lenses are extensively utilized in imaging optical systems. The residual stress and surface deformation produced during the injection molding of plastic optical lenses will immediately result in impairments in ...
Yuwang Hu, Changxi Xue
doaj   +1 more source