Results 121 to 130 of about 23,614 (296)

Broadband Directional Thermal Radiation with Asymmetric Femtosecond Laser‐Processed Surfaces

Advanced Optical Materials, EarlyView.
Femtosecond laser processing is used to scalably create self‐organized angled microstructures which exhibit highly directional emissivity that occurs for all polarizations. Laser parameters are tuned to alter the surface features, control the direction of emission, and enhance the directional emissivity. Electromagnetic modeling is performed to analyze
Andrew Butler, Andrew Reicks, Jack Schulz, Patrick Hayden, Alireza Kalantari Dehaghi, Kira Marr, Linxiao Zhu, Christos Argyropoulos, Craig Zuhlke   +8 more
wiley   +1 more source

Mode-locking in vertical external-cavity surface-emitting lasers with type-II quantum-well configurations

, 2019
A microscopic study of mode-locked pulse generation is presented for vertical external-cavity surface-emitting lasers utilizing type-II quantum well configurations.
I. Kilen, J. Hader, J. V. Moloney, S. W. Koch, Zegrya G.   +4 more
core   +1 more source

Strong Plasmon–Exciton Coupling Tuned by Corner Etching of Gold Nanocubes and Nanotriangles

Advanced Optical Materials, EarlyView.
Systematic etching of gold nanocubes (AuNCs) and nanotriangles (AuNTs) reveals how nanoparticle morphology governs plasmon–exciton strong coupling. While rounding the corners of AuNCs weakens their coupling, triangular geometries robustly preserve deep strong coupling.
Jiyeon Lee, Seoyoung Hwang, Yoon‐Min Lee, Jeong‐Eun Park, Sangwoon Yoon   +4 more
wiley   +1 more source

Multi-junction cascaded vertical-cavity surface-emitting laser with a high power conversion efficiency of 74%

Light: Science & Applications
High electro-optical conversion efficiency is one of the most distinctive features of semiconductor lasers as compared to other types of lasers. Its further increase remains a significant objective.
Yao Xiao, Jun Wang, Heng Liu, Pei Miao, Yudan Gou, Zhicheng Zhang, Guoliang Deng, Shouhuan Zhou   +7 more
doaj   +1 more source

Vertical-cavity surface-emitting lasers: Design, growth, fabrication, characterization [PDF]

, 1991
The authors have designed, fabricated, and tested vertical-cavity surface-emitting lasers (VCSEL) with diameters ranging from 0.5 µm to >50 µm. Design issues, molecular beam epitaxial growth, fabrication, and lasing characteristics are discussed.
Florez, L. T., Harbison, J. P., Jewell, Jack L., Lee, Y. H., Scherer, A.   +4 more
core  

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik, Fedor Kovalev, Mingkai Liu, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Mariusz Martyniuk, Ilya Shadrivov   +7 more
wiley   +1 more source

Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review

Advanced Robotics Research, EarlyView.
This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj, Quan‐Chen Song, Jia‐Yang Juang   +2 more
wiley   +1 more source

Comprehensive Simulation of Vertical Cavity Surface Emitting Lasers: Inclusion of a Many-Body Gain Model [PDF]

, 2018
This paper describes a comprehensive simulation technique for semiconductor lasers. In particular, a many-body calculation of optical gain for the quantum-well region is integrated into a multi-dimensional electro-opto-thermal simulator.
Aschwanden, Manuel, Laino, Valerio, Luisier, Mathieu, Odermatt, Stefan, Royo, Paul, Streiff, Matthias, Vez, Dominique, Witzig, Andreas, Witzigmann, Bernd   +8 more
core  

Dual‐Functional Ingestible Passive Capsules for High‐Throughput Intestinal Sampling with Sealed Containment and Targeted Drug Delivery

Advanced Robotics Research, EarlyView.
To address challenges in high‐throughput intestinal sampling with sealed containment and target drug delivery, we developed a dual‐functional ingestible passive capsule with a dual‐triggered control system based on pH‐response and mechanical actuation.
Libing Huang, Houyu Ling, Xizong Chen, Yufei Duan, Yu Liu, Shuntian Cai, Yandan Ren, Wenlong Li, Lei Ren, Miao Wang   +9 more
wiley   +1 more source

Electrically driven photonic crystal nanocavity devices

, 2012
Interest in photonic crystal nanocavities is fueled by advances in device performance, particularly in the development of low-threshold laser sources. Effective electrical control of high performance photonic crystal lasers has thus far remained elusive ...
Ellis, Bryan, Haller, Eugene E., Harris, James, Majumdar, Arka, Mayer, Marie A., Petykiewicz, Jan, Sarmiento, Tomas, Shambat, Gary, Vuckovic, Jelena   +8 more
core   +1 more source