Results 1 to 10 of about 5,387 (184)

Improvement of Near-Infrared Light-Emitting Diodes’ Optical Efficiency Using a Broadband Distributed Bragg Reflector with an AlAs Buffer [PDF]

open access: yesNanomaterials
This study developed an advanced 850 nm centered distributed Bragg reflector (DBR) (broadband DBR) composed of nanomaterial-based multiple structures to improve the optical efficiency of an 850 nm near-infrared light-emitting diode (NIR-LED).
Hyung-Joo Lee   +3 more
doaj   +2 more sources

Graphene quantum dot-coated polystyrene microsphere multilayer colloidal crystals with distributed Bragg reflector absorption [PDF]

open access: yesScientific Reports
Distributed Bragg reflector (DBR) absorptive materials have broad applications in optical fibre communications, solar cells, and other fields. This study adopts dispersion polymerization to prepare monodisperse polystyrene (PS) microspheres.
Binglang Chang, Lin Yi
doaj   +2 more sources

Optimization of dispersion angle in resonant cavity micro-light-emitting diode using multilayer DBR and microlens structures [PDF]

open access: yesDiscover Nano
In this paper, the fabrication and the corresponding performance characteristics of resonant cavity micro-light-emitting diodes (RC-μ-LEDs) are examined, with particular emphasis placed on reducing the light emission angle to enhance their application ...
Tzu-Yi Lee   +11 more
doaj   +2 more sources

Tamm-cavity terahertz detector [PDF]

open access: yesNature Communications
Efficiently fabricating a cavity that can achieve strong interactions between terahertz waves and matter would allow researchers to exploit the intrinsic properties due to the long wavelength in the terahertz waveband.
Xuecou Tu   +21 more
doaj   +2 more sources

Improving Mini-LED Pattern Quality by Using Distributed Bragg Reflector and Digital Twin Technology

open access: yesCrystals, 2022
Fine-pitch backlight technology is rapidly evolving along with display technology, and chips are increasingly designed for direct integration with modules.
Shu-Hsiu Chang   +5 more
doaj   +1 more source

Novel 1064 nm DBR lasers combining active layer removal and surface gratings

open access: yesElectronics Letters, 2021
The fabrication and characterisation details of novel distributed Bragg reflector (DBR) diode lasers emitting around 1064 nm are presented here. The AlGaAs epitaxial layer stack used here allows the removal of the active quantum wells in passive sections
O. Brox   +8 more
doaj   +1 more source

Monolithically Integrated Dual-Wavelength Distributed Bragg Reflector Laser Photonic Integrated Circuit Chip for Continuous-Wave Terahertz Generation

open access: yesIEEE Photonics Journal, 2021
We report the design, fabrication and characterization of a 1.55-μm dual-wavelength Distributed Bragg Reflector (DBR) laser photonic integrated circuit (PIC) chip for continuous-waves (CW) terahertz generation.
Qianwen Guo   +7 more
doaj   +1 more source

A Widely Tunable Three-Section DBR Lasers for Multi-Species Gas Detection

open access: yesApplied 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

High Performance Wide Angle DBR Design for Optoelectronic Devices

open access: yesIEEE Photonics Journal, 2021
To improve the performance of optoelectronic devices, a high performance wide angle SiO2/Ti3O5 Distributed Bragg Reflector (DBR) mirror was designed and fabricated on double polished sapphire substrate. 17-pairs gradually varied DBR structure was applied
Ting Zhi   +6 more
doaj   +1 more source

Investigation of Spectral Properties of DBR-Based Photonic Crystal Structure for Optical Filter Application

open access: yesCrystals, 2022
In this work, the spectral properties of distributed Bragg reflector-based photonic crystal (DBR-PhC) structures were studied for the near-infrared (NIR) range.
Umair Ahmed   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy