Results 151 to 160 of about 2,863,831 (279)

Self‐Sustained Oscillations in MoS2 Optomechanical Resonators for VHF Optical Radio

Advanced Photonics Research, Volume 7, Issue 6, June 2026.
This work demonstrates the use of 2D materials drum resonators to generate and modulate radio‐over‐laser signals. Taking advantage of the self‐sustained oscillations arising in cavity optomechanical systems by a continuous wave visible laser, a radio frequency signal is generated and frequency‐modulated by just changing a DC gate voltage.
Ramón Bernardo‐Gavito, Julia García‐Pérez, Ruth Martínez Temple, Daniel Granados   +3 more
wiley   +1 more source

Diffusion–Model–Driven Discovery of Ferroelectrics for Photocurrent Applications

Advanced Science, Volume 13, Issue 31, 4 June 2026.
We developed a diffusion model–based generative AI and high‐throughput screening framework that accelerates the discovery of photovoltaic ferroelectrics. By coupling AI driven crystal generation with machine learning and DFT screening, we identified Ca3P2 and LiCdP as new ferroelectric materials exhibiting strong polarization, feasible switching ...
Byung Chul Yeo, Hyun‐Jae Lee, Sungwoo Kang, Jung‐Hoon Lee   +3 more
wiley   +1 more source

Memristive Physical Reservoir Computing

Advanced Science, Volume 13, Issue 33, 15 June 2026.
Memristors’ nonlinear dynamics and input‐dependent memory effects make them ideal candidates for high‐performance physical reservoir computing (RC). Based on their conductance modulation, memristors can be classified as electronic or optoelectronic types.
Dian Jiao, Ziyuan Wang, Jingrui Wang, Li Zhang, Xianhua Wei, Lingxiang Hu, Zongxiao Li, Athanasios V. Vasilakos, Zhizhen Ye, Fei Zhuge   +9 more
wiley   +1 more source

Spin Polarization Modulation Responses of Polarization Bistable VCSELs

IEEE Photonics Journal
This study investigates the spin polarization modulation responses of vertical-cavity surface-emitting lasers (VCSELs) through numerical simulations and experimental measurements.
Nobuhide Yokota, Hiroshi Yasaka
doaj   +1 more source

ANALYTICAL MODEL FOR OPTICAL BISTABILITY IN LASER WITH SATURABLE ABSORBER

, 2011
In this paper, we develop a theoretical model that accurately describes the nonlinear phenomenon of optical bistability in Fabry-Perot laser containing a saturable absorber "LSA". We present an analytical model for optical bistability in a LSA.
S. MEGUELLATI, S. DJABI, H. BOUDOUKHA
core   +1 more source

Stimuli‐Responsive Hydrogels for Optical Applications: Mechanisms, Architectures, and Translational Challenges

Aggregate, Volume 7, Issue 6, June 2026.
The review discusses stimuli‐responsive hydrogels as soft optical materials that translate physical, chemical, and biological cues into refractive‐index, scattering, birefringence, diffraction, and transparency changes. It examines major stimulus classes and photonic architectures for biosensing, waveguiding, adaptive lenses, smart windows, and therapy.
Andrés Bernal‐Ballén, Alexandr Dejneka, Oleg Lunov   +2 more
wiley   +1 more source

Quantum Nonlinear Nonreciprocity in a Cavity-Coupled Quantum Dot–Metal Nanoparticle Hybrid System

Photonics
Optical nonreciprocity (ONR) plays an important role in laser technique, optical communications, quantum information, etc. Realizing ONR at the quantum level of few photons or single photons is also essential for quantum communications or quantum ...
Zeyou Li, Han Yang, Fei Xu, Peng Wang, Yihong Qi   +4 more
doaj   +1 more source

OPTICAL BISTABILITY IN A GAAS/GAALAS MULTI-QUANTUM-WELL (MQW) SELF-ELECTROOPTIC EFFECT DEVICE (SEED)

, 1991
Based on a GaAs/GaAlAs MQW pin structure grown by a home-made MBE system, we have successfully fabricated a SEED. The optical bistability and related properties of the device under symmetric operation (S-SEED) and asymmetric operation are ...
KONG MY, PAN Z, LIN SM, WU TH, ZHANG QS, WANG QM, DUAN HL, WU TH CHINESE ACAD SCIINST SEMICONDBEIJINGPEOPLES R CHINA   +7 more
core  

Optical bistability and nonlinear gain in 1.55 μm VCSOA

, 2006
An experimental observation of power and wavelength optical bistability and nonlinear gain in a 1550nm vertical-cavity semiconductor optical amplifier (VCSOA) operated in reflection and biased above and below threshold is reported.
Adams, M. J., Hurtado, A., Gonzalez-Marcos, A., Henning, I. D.   +3 more
core   +1 more source

Sleep‐like slow waves during resting‐state: A promising EEG biomarker of amyloid and neurodegeneration in preclinical Alzheimer's disease

Alzheimer's &Dementia, Volume 22, Issue 6, June 2026.
Abstract INTRODUCTION Growing evidence supports a critical role of sleep slow waves (SW) in Alzheimer's disease (AD). However, wake SW (sleep‐like SW potentially reflecting local intrusions of sleep) remain unexplored in AD. METHODS A total of 274 older adults with subjective cognitive decline (SCD) (INSIGHT‐preAD cohort, 76.6 ± 3.5 years) underwent (i)
Pierre Champetier, Claudia Albero, Filipa Raposo Pereira, Rubén Herzog, Maximilien Chaumon, Marion Houot, Maxime Locatelli, Aurélie Kas, Marie‐Odile Habert, Marc Teichmann, Stéphane Epelbaum, Isabelle Arnulf, Delphine Oudiette, Thomas Andrillon, the INSIGHT‐preAD group   +14 more
wiley   +1 more source