Liquid crystal between two distributed Bragg reflectors enables multispectral small-pitch spatial light modulator [PDF]
Light: Science & Applications, 2022 The ability of controlling the phase of light at the subwavelength scale can be a game-changer due to its extraordinally wide angle-range in the wavefront shaping.
Junghyun Park, Kanghee Won, Young Kim
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Modified Distributed Bragg Reflectors for Color Stability in InGaN Red Micro-LEDs [PDF]
Nanomaterials, 2023 The monolithic integration of InGaN-based micro-LEDs is being of interest toward developing full-color micro-displays. However, the color stability in InGaN red micro-LED is an issue that needs to be addressed.
Wen-Chien Miao +8 more
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Effect of distributed Bragg reflectors on photoluminescence properties of CH3NH3PbI3 film [PDF]
Scientific Reports, 2022 The nanoporous (NP) GaN distributed Bragg reflector (DBR) was prepared by using electrochemical etching. Then the NP-GaN DBR was pretreated by using ozone treatment.
Feng Jiang +4 more
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Wide-angle all-optical filtering via defective distributed Bragg reflectors [PDF]
Scientific ReportsIn this paper, we propose a distributed Bragg reflector (DBR) involving active atoms doped in the defect layer to manipulate the transmission and group velocity of a weak probe field. We exploit three-level rubidium atoms in a Ladder configuration, which
Forough Bozorgzadeh
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Distributed Bragg Reflectors Employed in Sensors and Filters Based on Cavity-Mode Spectral-Domain Resonances [PDF]
Sensors, 2022 Spectral-domain resonances for cavities formed by two distributed Bragg reflectors (DBRs) were analyzed theoretically and experimentally. We model the reflectance and transmittance spectra of the cavity at the normal incidence of light when DBRs are ...
Michal Gryga +2 more
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Flexible Distributed Bragg Reflectors from Nanocolumnar Templates. [PDF]
Adv Opt Mater, 2015 A flexible distributed Bragg reflector is made by the infiltration of a nanocolumnar array with polydimethyl siloxane oligomers. The high optical reflectance displayed by the final material is a direct consequence of the high refractive index contrast of the columnar layers whereas the structural stability is due to the polymer properties.
Calvo ME +6 more
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Narrow Linewidth Distributed Bragg Reflectors Based on InGaN/GaN Laser [PDF]
Micromachines, 2019 A variety of emerging technologies, such as visible light communication systems, require narrow linewidths and easy-to-integrate light sources. Such a requirement could be potentially fulfilled with the distributed Bragg reflector (DBR) lasers, which are
Wuze Xie +5 more
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Anisotropic properties of pipe-GaN distributed Bragg reflectors. [PDF]
Nanoscale Adv, 2020 Polarization-dependent reflectance spectra of the pipe-GaN reflector show that it can be used as a polarized light source.
Wu CJ +9 more
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Porous AlGaN-Based Ultraviolet Distributed Bragg Reflectors. [PDF]
Materials (Basel), 2018 Utilising dislocation-related vertical etching channels in gallium nitride, we have previously demonstrated a simple electrochemical etching (ECE) process that can create layered porous GaN structures to form distributed Bragg reflectors for visible light at wafer scale. Here, we apply the same ECE process to realise AlGaN-based ultraviolet distributed
Griffin P, Zhu T, Oliver R.
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Performance-Enhanced 365 nm UV LEDs with Electrochemically Etched Nanoporous AlGaN Distributed Bragg Reflectors [PDF]
Nanomaterials, 2019 A 365-nm UV LED was fabricated based on embedded nanoporous AlGaN distributed Bragg reflectors (DBR) by electrochemical etching. The porous DBR had a reflectance of 93.5% at the central wavelength of 365 nm; this is the highest value of porous AlGaN DBRs
Xingdong Lu +7 more
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