Results 81 to 90 of about 36,998 (231)

Silicon dual pillar structure with a distributed Bragg reflector for dielectric laser accelerators: Design and fabrication

, 2018
Dielectric laser accelerators (DLAs) have proven to be good candidates for miniaturized particle accelerators. They rely on micro-fabricated dielectrics which are able to modulate the kinetic energy of the incoming electron beam under a proper laser ...
Boine-Frankenheim, Oliver, Gannott, Florentina, Hommelhoff, Peter, Kozák, Martin, Lohse, Olga, McNeur, Joshua, Niedermayer, Uwe, Yousefi, Peyman   +7 more
core   +1 more source

Follow Me Into Math: Near‐Peer Influencers Take the Stage

School Science and Mathematics, EarlyView.
ABSTRACT Young people like to be entertained, and to entertain others. What if students were to invest enough of their time and effort into learning topics from our mathematics courses to become experts in the eyes of their peers? In this study we positioned college students and high school students as mathematical performers on the stage in front of ...
Aaron T. Wilson, Sergey Grigorian, Mayra Ortiz Galarza, Xiaohui Wang   +3 more
wiley   +1 more source

Optically pumped GaN-based vertical cavity surface emitting laser with strain-compensated AlGaN/InGaN distributed Bragg reflector

Applied Physics Express
We proposed a strain-compensated distributed Bragg reflector (DBR) with high reflectivity and a practical growth time. The DBR consists of AlGaN/GaN multilayer as the low refractive index layer and InGaN as the high refractive index layer.
T. Kawashima, M. Kaminishi, C. Kimura, S. Sato   +3 more
doaj   +1 more source

Optical properties of DBR-lasers.

The Review of Laser Engineering, 1989
We have fabricated the InGaAsP/InP DBR-lasers with the wavelength range of 1.5μm, and investigated their optoelectronic properties. High sub-mode suppression ratios of exceeding 35 dB, and very narrow spectral linewidths less than 10 MHz were obtained. Wavelengthtuning was performed by an injection of tuning current in Bragg reflector region.
Mitsuo TAKAHASHI, Manabu YOSHIMURA, Yasunori MICHITSUJI, Hiromi NAKANISHI, Yoshimitsu YAMAZOE, Tetsuo SUGIMOTO   +5 more
openaire   +2 more sources

Phonitons as a sound-based analogue of cavity quantum electrodynamics

, 2013
A quantum mechanical superposition of a long-lived, localized phonon and a matter excitation is described. We identify a realization in strained silicon: a low-lying donor transition (P or Li) driven solely by acoustic phonons at wavelengths where high-Q
A. Kavokin, A. N. Cleland, Charles Tahan, G. L. Bir, P. Yu, P. R. Berman, Rusko Ruskov, S. M. Rytov, S. M. Rytov, Y. Yamamoto, Ö. O. Soykal   +10 more
core   +1 more source

Vascular and skeletal muscle oxidative capacity responses to continuous double and single leg cycling

Experimental Physiology, EarlyView.
Abstract The purpose of this work was to determine endothelial, microvascular, skeletal muscle oxidative capacity (SMOC) and cardiorespiratory responses to an acute bout of continuous single leg cycling (SLC) and double leg cycling (DLC). Ten recreationally active men and women volunteered to participate in this investigation and reported to the ...
Edward Z. Pelka, B. Ryan Davis, John McDaniel   +2 more
wiley   +1 more source

100 GHz Spaced 10 Gbit/s WDM over 10 degrees C to 70 degrees C using an uncooled DBR laser [PDF]

, 2006
100 GHz spaced 10 Gbit/s (NRZ, PRBS 2(31)-1) WDM transmission is demonstrated with an uncooled DBR laser. The wavelength of the laser was stabilised within 2 GHz from 10 degrees C to 70 degrees C using a predicting algorithm.
Cannard, P, Fice, MJ, Lealman, I, Renaud, CC, Rivers, L, Seeds, AJ   +5 more
core  

A context‐based English Medium Instruction professional development programme for Turkish EMI lecturers: Insights from a grounded design study

Review of Education, Volume 14, Issue 2, August 2026.
Abstract English Medium Instruction (EMI) has rapidly become an important part of higher education in many countries around the world. While the number of EMI programmes and institutions has increased, professional development programme (PDP) opportunities for EMI lecturers and their effectiveness are not yet well designed or closely aligned with local
Mehmet Birgün, Yasemin Kırkgöz
wiley   +1 more source

Active learning strategies in business and information & communication technology engineering higher education: A scoping review

Review of Education, Volume 14, Issue 2, August 2026.
Abstract Active learning (AL) has emerged as a pedagogical response to diverse educational challenges across multiple disciplines. This scoping review maps the terrain of AL implementation patterns, examining AL practices in Business Education, Information and Communication Technology (ICT) Engineering, Mathematics, and Statistics from 2015 until the ...
Dubravka Novkovic, Ricardo Torres Kompen, Josep Petchamé   +2 more
wiley   +1 more source

Preparation and novel photoluminescence properties of the self-supporting nanoporous InP thin films

Scientific Reports, 2020
Self-supporting nanoporous InP membranes are prepared by electrochemical etching, and are then first transferred to highly reflective (> 96%) mesoporous GaN (MP-GaN) distributed Bragg reflector (DBR) or quartz substrate. By the modulation of bandgap, the
Dezhong Cao, Bo Wang, Dingze Lu, Xiaowei Zhou, Xiaohua Ma   +4 more
doaj   +1 more source