Results 241 to 250 of about 12,922 (291)

Holistic Thermo-Optical Design of Laminate Layers for Halide Perovskite Photovoltaic Windows. [PDF]

open access: yesACS Energy Lett
Prince KJ   +8 more
europepmc   +1 more source

Conductive Inorganic–Organic Hybrid Distributed Bragg Reflectors

Advanced Materials, 2015
A conductive hybrid distributed Bragg reflector (DBR) is demonstrated, consisting of inorganic and organic semiconductor films and assembled by a thermal deposition technique. A maximum reflectance of 92.2% and a wide spectral width of more than 70 nm are achieved.
Xiao-Bo, Shi   +5 more
openaire   +4 more sources

A distributed Bragg reflector silicon evanescent laser

2008 5th IEEE International Conference on Group IV Photonics, 2008
We report a distributed Bragg reflector silicon evanescent laser operating continuous wave at 1596 nm. The lasing threshold and maximum output power are 65 mA and 11 mW, respectively and shows open eye-diagrams under direct modulation at 2.5 Gb/s.
A.W. Fang   +6 more
openaire   +3 more sources

Organic multilayers as distributed Bragg reflectors

Applied Physics Letters, 1999
We report on a distributed Bragg reflector (DBR) operating in the IR spectral region, based on a fluorocarbon polymer (CFx) multilayer. In this organic structure, the periodic variation of the refractive index is obtained by embedding gold clusters in the CFx, resulting in a periodic CFx/CFx(Au) layered structure with a refractive index discontinuity ...
A Convertino, A Valentini, R Cingolani
openaire   +3 more sources

AlP/GaP distributed Bragg reflectors

Applied Physics Letters, 2013
Distributed Bragg reflectors with high reflectivity bands centered at wavelengths from 530 to 690 nm (green to red) based on AlP/GaP quarter-wave stacks are prepared on (001)GaP using gas-source molecular-beam epitaxy. Additionally, the complex refractive index of AlP is measured using spectroscopic ellipsometry within the range of 330–850 nm in order ...
Valentin Emberger   +3 more
openaire   +1 more source

Characterization of Distributed Bragg Reflectors

IEEE Journal of Quantum Electronics, 2014
We propose and demonstrate a novel method to characterize the coupling coefficient and loss coefficient of a distributed Bragg reflector (DBR). The method is based on a coupled-mode analysis of periodic structures, and involves the linewidth comparison of a pair of DBR Fabry-Perot resonators. The method is shown to be independent of coupling efficiency
Andrew Grieco, Yeshaiahu Fainman
openaire   +1 more source

GaAs distributed Bragg reflector lasers

Optics Communications, 1976
Abstract An equivalent cavity approach is used to derive the oscillation condition of a distributed Bragg reflector laser. The oscillation frequencies and thresholds are determined graphically. The effect of lossy reflectors is discussed. Several advantages and potential applications of distributed Bragg reflector structures are pointed out ...
H.W. Yen, W. Ng, I. Samid, A. Yariv
openaire   +1 more source

High performance distributed Bragg reflector microwave resonator

Proceedings of 1996 IEEE International Frequency Control Symposium, 1997
A new resonator device structure is described that achieves Q-factors well above those currently realizable for conventional room temperature microwave structures. The new structure consists of a microwave cavity, for which the enclosure walls consist of distributed Bragg reflectors (DBR) made of low-loss sapphire.
C A, Flory, R C, Taber
openaire   +2 more sources

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