Flexible Distributed Bragg Reflectors from Nanocolumnar Templates
Advanced Optical Materials, 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.
Mauricio E. Calvo +6 more
openaire +5 more sources
Germanium-on-silicon planar concave grating wavelength (de)multiplexers in the mid-infrared [PDF]
, 2013 Mid-infrared wavelength (de)multiplexers based on planar concave gratings (PCGs) fabricated on a germanium-on-silicon waveguide platform are presented. PCGs with two different types of gratings (flat facet and distributed bragg reflectors) are analyzed ...
Aditya Malik +6 more
core +2 more sources
Multi-Frequency Doppler Velocimetry Based on a Mode-Locked Distributed Bragg Reflector Laser
Photonics, 2023 A differential multi-frequency laser Doppler velocimetry is demonstrated, utilizing the synchronized multimode of a mode-locked distributed Bragg reflector laser.
Hao Song +5 more
doaj +1 more source
Design, fabrication and characterization of a distributed Bragg reflector for reducing the étendue of a wavelength converting system [PDF]
, 2020 In this work, the design, fabrication and characterization are reported for a distributed Bragg reflector (DBR) filter with a specific wavelength and angular dependency, which aims to improve the light collection from a wavelength-converter-based light ...
Beeckman, Jeroen +3 more
core +1 more source
Room-temperature operation of GaAs Bragg-mirror lasers [PDF]
, 1976 Room-temperature operation of GaAs distributed Bragg reflector lasers is reported. The diodes are fabricated from conventional double heterostructures involving only a single step of liquid-phase epitaxy.
Katzir, A. +4 more
core +1 more source
High-efficiency, low-cost distributed Bragg reflector based on Al2O3/PbZr0.4Ti0.6O3 multilayer
AIP Advances, 2020 Ferroelectric oxides are kinds of materials for construction of tunable photonic crystals with remarkable electro-optical properties. However, it is a challenge to prepare high quality dielectric mirrors consisting of ferroelectric and dielectric ...
Shimin Li +4 more
doaj +1 more source
Subtle design changes control the difference in colour reflection from the dorsal and ventral wing-membrane surfaces of the damselfly Matronoides cyaneipennis. [PDF]
, 2016 The hind wings of males of the damselfly Matronoides cyaneipennis exhibit iridescence that is blue dorsally and green ventrally. These structures are used semiotically in agonistic and courtship display.
Nixon, MR, Orr, AG, Vukusic, P
core +1 more source
Ka-band relativistic diffraction generator with a tapered coaxial Bragg reflector
AIP Advances, 2017 A coaxial line with periodically tapered inner rode corrugated ripples is introduced to act as a distributed Bragg reflector to increase output microwave power of relativistic diffraction generator (RDG).
Feng Lan +6 more
doaj +1 more source
Mutual optical injection in coupled DBR laser pairs [PDF]
, 2009 We report an experimental study of nonlinear effects, characteristic of mutual optical coupling, in an ultra-short coupling regime observed in a distributed Bragg reflector laser pair fabricated on the same chip.
Avila +34 more
core +1 more source
Electronics Letters, 2023 The improvement of the performance of a distributed Bragg reflector laser bar emitting near 905 nm through the use of multiple epitaxially stacked active regions and tunnel junctions is reported. The bar consisting of 48 emitters (each having an aperture
Nor Ammouri +7 more
doaj +1 more source