Results 61 to 70 of about 19,724 (234)

Triplet‐Triplet Annihilation Enhances Photochemical Curing Contrast for Vat‐Based 3D Printing

Advanced Functional Materials, EarlyView.
Triplet–triplet annihilation photopolymerization (TTAP) resins enhance curing contrast for digital light processing (DLP) 3D printing compared to conventional Type I and II photopolymerizations at matched optical densities. By exploiting a superlinear initiation response, TTAP preserves fine details, allowing reliable fabrication of complex structures ...
Connor J. O'Dea, Evan P. Scruggs, Zachariah A. Page   +2 more
wiley   +1 more source

Inverse-cavity structure for low-threshold miniature lasers

Scientific Reports, 2022
Creating micro and nano lasers, high threshold gain is an inherent problem that have critically restricted their great technological potentials. Here, we propose an inverse-cavity laser structure where its threshold gain in the shortest-cavity regime is ...
Gunpyo Kim, Seok Ho Song, Jae Woong Yoon
doaj   +1 more source

Cavity solitons in vertical-cavity surface-emitting lasers [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
We investigate a control of the motion of localized structures (LSs) of light by means of delay feedback in the transverse section of a broad area nonlinear optical system. The delayed feedback is found to induce a spontaneous motion of a solitary LS that is stationary and stable in the absence of feedback.
Tlidi, Mustapha, Pimenov, Alexander, Vladimirov, Andrei G., Panajotov, Krassimir, Averlant, Eugene, Gurevich, Svetlana V.   +5 more
openaire   +5 more sources

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Polarization switches in vertical-cavity surface-emitting lasers [PDF]

SPIE Proceedings, 2004
The polarization dynamics of a vertical cavity surface emitting laser is investigated as a nonlinear stochastic dynamical system. The polarization switches in the device are considered as activation processes in a two dimensional system with a saddle cycle; the optimal way of switching is determined as the solution of a boundary value problem.
Beri S., MANNELLA, RICCARDO, Luchinsky D. G., McClintock P. V. E.   +3 more
openaire   +2 more sources

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Tailored Transverse Mode Vertical-Cavity Surface-Emitting Laser: Hollow Laser Beam Emission through Circle Aperture

IEEE Photonics Journal, 2020
Vertical-cavity surface-emitting lasers that can be controlled to emit hollow laser beam in certain LP21 mode are proposed and fabricated. A circular inverted surface relief with precisely designed diameter and thickness is introduced through theoretical
Yinli Zhou, Xing Zhang, Jianwei Zhang, Youwen Huang, Yugang Zeng, Jinjiang Cui, Yun Liu, Yongqiang Ning, Lijun Wang   +8 more
doaj   +1 more source

Nonlinear Dynamics of Vertical-Cavity Surface-Emitting Lasers [PDF]

Advances in Optical Technologies, 2011
Nonlinear dynamics of Vertical-Cavity Surface-Emitting Lasers (VCSELs) induced by optical injection, optical feedback, current modulation and mutual coupling is reviewed. Due to the surface emission and cylindrical symmetry VCSELs lack strong polarization anisotropy and may undergo polarization switching.
Krassimir Panajotov, Marc Sciamanna, Ignace Gatare, Mikel Arteaga, Hugo Thienpont   +4 more
openaire   +3 more sources

Highly Conductive and Stretchable Photothermal CuSe Fiber for Wearable Electronics and Implantable Drug Release Systems

Advanced Functional Materials, EarlyView.
The conductive and stretchable photothermal CuSe fiber is fabricated for versatile biomedical applications. This CuSe fiber functions as a reliable wearable strain sensor and heater due to its high conductivity, stretchability and photothermal efficiency.
Kukro Yoon, Yukye Lee, Sang Ki Rhee, Hyeonjoo Park, Kyowon Kang, Mingyu Sang, Byeonggwan Kim, Jung Seung Lee, Jaehong Lee, Taeyoon Lee   +9 more
wiley   +1 more source

Mode-Locked Operation of High-Order Transverse Modes in a Vertical-External-Cavity Surface-Emitting Laser

Sensors
Understanding the mechanism of mode-locking in a laser with high-order transverse mode is important for achieving an ultrashort pulses train under more complicated conditions.
Tao Wang, Yunjie Liu, Renjiang Zhu, Lidan Jiang, Huanyu Lu, Yanrong Song, Peng Zhang   +6 more
doaj   +1 more source