Results 61 to 70 of about 23,614 (296)

Distributed Bragg Reflectors for GaN-Based Vertical-Cavity Surface-Emitting Lasers

Applied Sciences, 2019
A distributed Bragg reflector (DBR) is a key building block in the formation of semiconductor microcavities and vertical cavity surface emitting lasers (VCSELs). The success in epitaxial GaAs DBR mirrors paved the way for the ubiquitous deployment of III-
Cheng Zhang, Rami ElAfandy, Jung Han
doaj   +1 more source

Optically-pumped dilute nitride spin-VCSEL [PDF]

, 2012
We report the first room temperature optical spin-injection of a dilute nitride 1300 nm vertical-cavity surface-emitting laser (VCSEL) under continuous-wave optical pumping.
Adams, Al-Seyab, Ando, Antonio Hurtado, Forchel, Gahl, Gerhardt, Holub, Hövel, Hövel, Ian D. Henning, Iba, Jouhti, Kevin Schires, Knowles, Lombez, Martin-Regalado, Michael J. Adams, Mircea Guina, Reith, Rihab Al Seyab, Rudolph, Rudolph, San Miguel, Ville-Markus Korpijärvi   +24 more
core   +1 more source

The Effect of Purcell Cavities on the Lifetime of Thermally Activated Delayed Fluorescent Emitters

Advanced Functional Materials, EarlyView.
A pressing challenge to OLED displays and lighting is to balance high efficiency and long operational lifetime in the deep blue spectrum. The Purcell effect can reduce the triplet density and hence the probability for destructive energy‐driven triplet annihilation events that limit the OLED lifetime. Here we study of the Purcell effect on two different
Sritoma Paul, Haonan Zhao, Collin N. Muniz, Mark E. Thompson, Stephen R. Forrest   +4 more
wiley   +1 more source

Effects of Lateral Optical Confinement In GaN VCSELs With Double Dielectric DBRs

IEEE Photonics Journal, 2020
Two types of GaN vertical-cavity surface-emitting lasers (VCSELs), with and without lateral optical confinement (LOC) structure, were fabricated and their performances were compared. Compared with the VCSEL without LOC, the device with LOC showed a great
Rongbin Xu, Yang Mei, Huan Xu, Tianrui Yang, Leiying Ying, Zhiwei Zheng, Hao Long, Baoping Zhang, Jianping Liu   +8 more
doaj   +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

Nonlinear dynamics induced by parallel and orthogonal optical injection in 1550 nm Vertical-Cavity Surface-Emitting Lasers (VCSELs) [PDF]

, 2010
We report a first experimental study of the nonlinear dynamics appearing in a 1550 nm single-mode VCSEL subject to parallel and to orthogonal optical injection.
Ana Quirce, Angel Valle, Antonio Hurtado, Buesa, Chrostowski, Gatare, Gatare, Gu, Hang, Homayounfar, Hong, Hurtado, Hurtado, Jeong, Koyama, Lang, Luis Pesquera, Meng, Michael J. Adams, Mogensen, Pan, Panajotov, Park, Quirce, Sciamanna, Simpson, Valle, Wieczorek   +27 more
core   +2 more sources

Through Diamond Robust Surface Enhanced Raman Spectroscopy

Advanced Functional Materials, EarlyView.
Thin film diamond growth offers a unique opportunity for Surface Enhanced Raman Spectroscopy (SERS); the encapsulation of plasmonic nanostructures within a transparent, chemically stable, and physically robust coating. The diamond acts as both a window and protective layer, enabling illumination of the plasmonic nanostructures through the diamond ...
Kieran N. Twaddle, Rebecca J. Watkins, Ralph J. Moors, Massimiliano L.A. Ramsay, Richard B. Jackman   +4 more
wiley   +1 more source

Integrated plasmonic circuitry on a vertical-cavity surface-emitting semiconductor laser platform

Nature Communications, 2016
Integrated plasmonic sources are crucial in the development of plasmonic circuitry. Here, McPolin et al. show that vertical-cavity surface-emitting lasers can be employed as an on-chip, electrically pumped source or detector of plasmonic signals and also
Cillian P. T. McPolin, Jean-Sebastien Bouillard, Sebastien Vilain, Alexey V. Krasavin, Wayne Dickson, Daniel O’Connor, Gregory A. Wurtz, John Justice, Brian Corbett, Anatoly V. Zayats   +9 more
doaj   +1 more source

A Comparative Study of Electrical Characterization of P-Doped Distributed Bragg Reflectors Mirrors for 1300 nm Vertical Cavity Semiconductor Optical Amplifiers

ARO-The Scientific Journal of Koya University, 2021
This paper presents an electrical analysis of various diameters of two p-types of GaAs/Al0.9Ga0.1As and two p-types of GaAs/Al0.3Ga0.7As/Al0.9Ga0.1As distributed Bragg reflectors (DBRs) mirrors structure grown on undoped and on p-doped GaAs, which ...
Faten A. Chaqmaqchee
doaj   +1 more source

Drifting instabilities of cavity solitons in vertical cavity surface-emitting lasers with frequency selective feedback [PDF]

, 2009
In this paper we study the formation and dynamics of self-propelled cavity solitons (CSs) in a model for vertical cavity surface-emitting lasers (VCSELs) subjected to external frequency selective feedback (FSF), and build their bifurcation diagram for ...
Colet, P., Firth, W. J., Gomila, D., Loiko, N. A., Matias, M. A., Paulau, P. V.   +5 more
core   +2 more sources