Results 51 to 60 of about 2,191,429 (154)

Few‐Photon Fluorescence From Ultracold Bosons in an Optical Cavity

Contributions to Plasma Physics, EarlyView.
ABSTRACT Within a cavity quantum electrodynamics framework, we analyse the fluorescent spectrum of ultracold bosons in resonant and second‐harmonic generation (SHG) regimes. Two settings are considered: (i) (few) bosons in an optical lattice and (ii) a trapped two‐component dilute Bose–Einstein condensate (2BEC) within the Bogoliubov scheme.
Megha Gopalakrishna, Emil Viñas Boström, Claudio Verdozzi   +2 more
wiley   +1 more source

Lignocellulosic Triboelectric Materials for Energy Harvesting and Emerging Applications: A Review on Lignin‐Molecular Engineering toward Improved Performance

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Contrasting sustainable biomass with depleting petroleum resources, this review charts the evolutionary timeline of lignin‐based TENGs. We systematically evaluate their fundamental mechanisms, enhancement strategies, and applications in green self‐powered electronics.
Yuxin Yang, Boyu Du, Yuwen Wang, Tian Tang, Yuxuan Xie, Jiajun Zhang, Yajun Zhang, Jingyu Xu, Xing Wang, Chuanyin Xiong   +9 more
wiley   +1 more source

Tunable Optical Bistability, Tristability and Multistability in Arrays of Graphene

, 2020
The optical bistability, tristability and multistability are explored in arrays of graphene. The arrays are periodically arranged spatially by single sheets of graphene.
Dong Zhao, Ming Fang, Bin Xu, Xiangna Kong, Xiuju Zhao, Dong Zhong   +5 more
core   +1 more source

Bifurcation analysis of a semiconductor laser with filtered optical feedback [PDF]

, 2006
We study the dynamics and bifurcations of a semiconductor laser with delayed filtered feedback, where a part of the output of the laser re-enters after spectral filtering.
Erzgraeber, H., Krauskopf, B., Erzgraeber, H, Lenstra, D., Bernd Krauskopf, H. Erzgraber, Lenstra, D, Erzgraber, H, Krauskopf, B, Daan Lenstra   +9 more
core   +1 more source

Color Symmetry Breaking in a Nonlinear Optical Microresonator

Laser &Photonics Reviews, EarlyView.
A two‐color pump drives an integrated microring resonator into spontaneous color symmetry breaking mediated by the nonlinear Kerr effect. Above threshold, one optical color becomes spontaneously dominant while the other is submissive, with the selected output state emerging randomly. These results establish a new form of symmetry breaking in integrated
Luca O. Trinchão, Alekhya Ghosh, Arghadeep Pal, Haochen Yan, Toby Bi, Shuangyou Zhang, Nathalia B. Tomazio, Flore K. Kunst, Lewis Hill, Gustavo S. Wiederhecker, Pascal Del'Haye   +10 more
wiley   +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

Uncertainty, Sensitivity, and Efficiency Analysis of a Hybrid Piezoelectric–Electromagnetic Energy Harvester

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Digitalization and emerging technologies are increasing the demand for wireless sensing and the Internet of Things (IoT), which provide opportunities for autonomous sources of electricity in the form of energy harvesting systems. This paper focuses on the challenges in hybrid piezoelectric‐electromagnetic kinetic energy harvesting systems that
Petr Sosna, Damian Gaska, Zdeněk Hadaš
wiley   +1 more source

High‐Pressure Chemical Vapor Deposition Growth of Transition Metal Dichalcogenides With Minimized Sulfur Vacancies

National Materials, EarlyView.
High‐pressure chemical vapor deposition at 3800 torr elevates the sulfur chemical potential during MoS2 growth, suppressing sulfur‐vacancy formation. This thermodynamic control yields MoS2 with defect densities comparable to those of exfoliated crystals, enhanced crystallinity, uniform defect distribution, and improved electronic transport properties ...
Takmo Jeong, Bumsub Song, Bong Gyu Shin, Jae Woo Kim, Sang‐Hyeok Yang, Young‐Min Kim, Ki Kang Kim, Young Hee Lee, Seok Joon Yun   +8 more
wiley   +1 more source

Optical bistability in GaInAsP/InP coupled-circular resonator microlasers

, 2011
Optical bistability is realized in GaInAsP/InP coupled-circular resonator microlasers, which are fabricated by planar technology. For a coupled-circular resonator microlaser with the radius of 20 mu m and a 2 mu m-wide bus waveguide, hysteresis loops are
Lin JD, Yang YD, Huang YZ, Yao QF, Xiao JL, Du Y, Huang, YZ (reprint author), Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China, yzhuang@semi.ac.cn, Lv XM   +7 more
core  

Bio‐Compatible Flexible Memristive Devices Enabled by BNNT/MWCNT–ZnO Quantum Dot Hybrid Percolation Networks

Small, EarlyView.
BNNT rods incorporated into MWCNT–ZnO quantum dot networks regulate charge transport and suppress leakage in flexible, transparent resistive memory devices. The resulting hybrid architecture preserves nonvolatile switching under static bending and after low‐temperature exposure and subcutaneous implantation.
Jaeho Shim, Dong Gwon Heo, Seonghwan Oh, Jinseo Park, Seok‐Ho Seo, Juhee You, Yuwen Wei, Whan Kim, Inseok Seo, Jinseok Kim, Donghee Park, Dong Ick Son   +11 more
wiley   +1 more source