Results 21 to 30 of about 47,639 (261)
Optical Tamm state theory study on asymmetric DBR-metal-DBR structure
Acta Physica Sinica, 2013 As a special metal surface state, optical Tamm state (OTS) has been widely used in designing the new generation of optical devices for its unique advantages in light control and operation. Based on distribute Bragg reflector (DBR)-metal-DBR (DMD)structure, asymmetric mechanism is introduced by mismatching central frequencies of the two DBRs to design ...
null Jiang Yao +2 more
openaire +1 more source
ARO-The Scientific Journal of Koya University, 2021 In this work, the design of GaAs/AlGaAs distributed Bragg reflector (DBR) has been implemented for 1300 nm vertical cavity semiconductor optical amplifiers (VCSOAs) for optical fiber communication applications. The top DBR period and Al concentration are
Shawbo A. Abubaker
doaj +1 more source
IEEE Photonics Journal, 2019 A highly sensitive optical fiber sensor for the measurement of axial force and refractive index (RI) is presented. The optical sensor consists of a distributed Bragg reflector (DBR) based fiber laser, the laser cavity of the DBR is polished to D-shape by
Xinfeng Yang +5 more
semanticscholar +1 more source
PROPUESTA DE UN SISTEMA NEURO-DBR Y SU APLICACIÓN EN LA PREDICCIÓN DE LA SERIE DE TIEMPO DE LORENZ
Ciencia e Ingeniería Neogranadina, 2010 Este artículo propone la predicción de la serie de tiempo Lorenz usando un nuevo método conocido como sistema Neuro-DBR y su comparación, con un diseño Neurodifuso convencional.
Lina Morales Laguado +2 more
doaj +3 more sources
Nano Convergence, 2023 A tradeoff between light absorption and charge transport is a well-known issue in PbS colloidal quantum dot (CQD) solar cells because the carrier diffusion length in PbS CQD films is comparable to the thickness of CQD film. We reduce the tradeoff between
Sumin Bae +3 more
doaj +1 more source
Current Oncology, 2021 Duodenal obstruction is often accompanied with unresectable malignant distal biliary obstruction in patients who have undergone biliary self-expandable metal stent (SEMS) placement.
Chi-Huan Wu +6 more
doaj +1 more source
Scientific Reports, 2018 We report for the first time the successful wavelength stabilization of two hybrid integrated InP/Polymer DBR lasers through optical injection. The two InP/Polymer DBR lasers are integrated into a photonic integrated circuit, providing an ideal source ...
G. Carpintero +5 more
semanticscholar +1 more source
Void Hole Avoidance for Reliable Data Delivery in IoT Enabled Underwater Wireless Sensor Networks
Sensors, 2018 Due to the limited availability of battery power of the acoustic node, an efficient utilization is desired. Additionally, the aquatic environment is harsh; therefore, the battery cannot be replaced, which leaves the network prone to sudden failures. Thus,
Arshad Sher +5 more
doaj +1 more source
A Widely Tunable Three-Section DBR Lasers for Multi-Species Gas Detection
Applied Sciences, 2021 We demonstrate a widely tunable distributed Bragg reflector (DBR) laser operating at 1.8-µm, in which the DBR section was butt-jointed InGaAsP (λ = 1.45 μm) material. Through current and temperature tuning, a widely tuning range of over 11 nm with a side
Hongyan Yu +5 more
doaj +1 more source
A comparison with the three-zone model for flow boiling heat transfer in small diameter tubes [PDF]
, 2006 Flow boiling heat transfer experimental results, obtained in two stainless steel tubes of internal diameter 4.26 mm and 2.01 mm using R134a as the working fluid, indicate that the local heat transfer coefficient increases with heat flux and is ...
Karayiannis, TG +2 more
core +1 more source