Results 31 to 40 of about 162,982 (292)
Increased cell efficiency in InGaAs thin film solar cells with dielectric and metal back reflectors [PDF]
, 2009 Compound single junction and multijunction solar cells enable very high photovoltaic efficiencies by virtue of employing different band gap materials in seriesconnected tandem cells to access the full solar spectrum.
Atwater, Harry A. +2 more
core +2 more sources
Lunar ISRU Energy Storage and Electricity Generation [PDF]
, 2020 The survival of the astronauts and their equipment is the priority for any long-term exploration mission to the Moon. The provision of energy during the long lunar nights is a critical part of these missions.
Fereres, Sonia +4 more
core +2 more sources
CONSTRUCTION OF A PARABOLIC SOLAR COLLECTOR AND COMPARATIVE STUDY OF THE PERFORMANCE OF ALUMINUM-COATED PELLICLE FILM AND ALUMINUM FOIL AS REFLECTING SURFACES [PDF]
Journal of Sustainable Energy, 2020 Most of the concentrators used in solar thermal systems are made from mirrors or metals with mirror or other highly reflective surfaces. Because mirror is the best reflecting surface for solar collectors and parabolic mirrors are expensive, people in the
OHAJIANYA, A. C.
doaj
Biaxial Piezoelectric MEMS Mirrors with Low Absorption Coating for 1550 nm Long-Range LIDAR
Micromachines, 2023 This paper presents the fabrication and characterization of a biaxial MEMS (MicroElectroMechanical System) scanner based on PZT (Lead Zirconate Titanate) which incorporates a low-absorption dielectric multilayer coating, i.e., a Bragg reflector.
L. Mollard +10 more
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Поволжская археологияThe article deals with the metal mirrors, found in the Volga Bolgaria and the Bolgar region of the Golden Horde. They are kept in the funds of Tatarstan museums and personal collections. 778 pieces of metal mirrors have been studied.
Rudenko Konstantin A.
doaj +1 more source
Improving of Surface Quality of Metal Reflector Mirrors Machined by Single Point Diamond Turning
Приборы и методы измерений, 2021 Improving the technology of diamond turning of aluminum alloys is of great importance for expanding the application areas of metal-optical products based on aluminum in aerospace technology.
G. A. Gusakov, G. V. Sharonov
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Control of superluminal transit through a heterogeneous medium
, 2009 We consider pulse propagation through a two component composite medium (metal inclusions in a dielectric host) with or without cavity mirrors. We show that a very thin slab of such a medium, under conditions of localized plasmon resonance, can lead to ...
Born M. +11 more
core +1 more source
Technologies for trapped-ion quantum information systems [PDF]
, 2016 Scaling-up from prototype systems to dense arrays of ions on chip, or vast networks of ions connected by photonic channels, will require developing entirely new technologies that combine miniaturized ion trapping systems with devices to capture, transmit
Bylinskii, Alexei +5 more
core +2 more sources
Поволжская археология, 2019 Two mirrors which were unearthed in 2016–2017 on the Nur-Tukhum archaeological complex are analyzed in the paper. The first finding is represented by a fragment of a Chinese bronze mirror of the TLV type, originating from the Xiongnu burial, the second ...
Bazarov Bilikto A., Miyagaschev Denis A.
doaj +1 more source
MMI resonators based on metal mirrors and MMI mirrors: an experimental comparison
Optics Express, 2015 We report, to the best of our knowledge, the first experimental proof of MMI-based resonators. The resonators have been designed and fabricated on a micron-scale silicon photonics platform and are based on different reflectors suitably placed on two of the four ports of 2x2 MMIs with uneven splitting ratios, namely 85:15 and 72:28.
Ylinen, Sami +5 more
openaire +3 more sources