Results 41 to 50 of about 1,179,244 (300)
Efficient, broadband and compact metal grating couplers for silicon-on-insulator waveguides [PDF]
, 2007 Metal grating couplers for Silicon-on-Insulator waveguides are proposed. A silver grating coupler with 33% coupling efficiency is designed. A gold gating coupler prototype is fabricated using Focused Ion Beams demonstrating over 10% coupling efficiency. (
Baets, Roel +5 more
core +4 more sources
Design of the Secondary Optical Elements for Concentrated Photovoltaic Units with Fresnel Lenses
Applied Sciences, 2015 The goal of this presented study was to determine the optimum parameters of secondary optical elements (SOEs) for concentrated photovoltaic (CPV) units with flat Fresnel lenses. Three types of SOEs are under consideration in the design process, including
Yi-Cheng Chen, Hung-Wei Chiang
doaj +1 more source
Optical Centroid Efficiency in Infrared Sensors
Engineering Proceedings, 2023 The noise-equivalent power is used to predict performance of infrared (IR) sensors. In a general IR or remote sensing system, the axes of the incoming chief ray of each pixel in the optical system and the center of that detector pixel are slightly ...
Marija Strojnik, Yaujen Wang
doaj +1 more source
Optical efficiency of far-infrared photoconductors [PDF]
Applied Optics, 1986 The present optimization of the geometry of far-IR photoconductive detectors with diffraction-limited throughput, on the basis of experimental and theoretical results, gives attention to the internal optical path relative to measured absorption length, photoconductive gain, uniformity of illumination, cosmic ray cross section, and design compatibility ...
J Q, Wang +4 more
openaire +2 more sources
Entangling efficiency of linear-optical quantum gates
, 2012 We propose a new measure of non-classicality of quantum gates which is particularly suitable for probabilistic devices. This measure enables to compare, e.g., deterministic devices which prepare entangled states with low amount of entanglement with ...
Dušek, Miloslav +3 more
core +1 more source
Parametric Optimization and Performance Analysis of a Central Receiver Solar Power Plant: A Numerical Study for Enhanced Solar Field and Receiver [PDF]
BIO Web of ConferencesIn the context of the energy transition and the search for sustainable solutions, central receiver solar power plants have become a promising technology for generating green electricity.
Bouaiche Khalid +3 more
doaj +1 more source
Advanced Physics Research, 2023 Dual‐band photomultiplication type polymer photodetectors (PM‐PPDs) are achieved with the structure of ITO/PDIN/poly[N,N′‐bis(4‐butylphenyl)‐N,N′‐bis(phenyl)benzidine] (poly‐TPD):2,2′‐((2Z,2′Z‐(12,13‐bis(2‐ethylhexyl)‐3,9‐diundecyl‐12,13‐dihydro‐[1,2,5 ...
Kaixuan Yang +7 more
doaj +1 more source
Optical refrigeration for ultra-efficient photovoltaics [PDF]
SPIE Proceedings, 2015 Improving the conversion efficiency of solar energy to electricity is most important to mankind. For single-junction photovoltaic solar-cells, the Shockley-Queisser thermodynamic efficiency limit is extensively due to the heat dissipation, inherently accompanying the quantum process of electro-chemical potential generation.
Manor, Assaf +2 more
openaire +2 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background This study investigated how neighborhood‐level social determinants of health (SDOH), including redlining and neurological risk, interact to influence cognitive outcomes in children treated for brain tumors (CTBT). Methods A retrospective chart review of 161 CTBT aged 5–17 was conducted.
Alannah R. Srsich +5 more
wiley +1 more source
Metasurface higher-order poincaré sphere polarization detection clock
Light: Science & ApplicationsAccurately and swiftly characterizing the state of polarization (SoP) of complex structured light is crucial in the realms of classical and quantum optics. Conventional strategies for detecting SoP, which typically involves a sequence of cascaded optical
Hui Yang +10 more
doaj +1 more source