Results 11 to 20 of about 17,063 (262)
NOPT – New polishing techniques for scalable, light-weighted mirrors of different materials [PDF]
EPJ Web of Conferences, 2019 In the framework of an assessment of optical polishing techniques, ESA has signed a contract with Media Lario to deliver two 250 mm mirrors with a common optical design to be polished down to very tight surface requirements. NOPT mirrors are respectively
Spinelli Sebastiano +5 more
doaj +1 more source
Поволжская археология, 2022 The collection of metal mirrors of the Golden Horde period of the Mangup hillfort, situated in the south-western part of the Crimea, includes 19 items.
Dushenko Anton A.
doaj +1 more source
PROSPECTS OF THE USE OF GRADIENT GRATES IN THE LASERS OF TERAHERTZ RANGE [PDF]
Radio Physics and Radio Astronomy, 2018 Purpose: The improvement and development of terahertz radiation sources is required for the further development of the terahertz frequency range. Submillimeter lasers are one of the few sources of terahertz radiation.
M. I. Dzyubenko +3 more
doaj +1 more source
The Chemical Composition of the Medieval Mirrors from Golden Horde Time Settlements
Вестник Волгоградского государственного университета. Серия 4. История, регионоведение, международные отношения, 2021 Introduction. The paper discussed the results of the study concerning the chemical composition of 16 mirrors from the Golden Horde period originating from the settlements Selitrennoe, Vodyanskoe, Uvekskoe Khmelevskoe I, Shirokiy Buerak and ...
Kseniya Kovaleva
doaj +1 more source
Casimir force between metallic mirrors [PDF]
The European Physical Journal D - Atomic, Molecular and Optical Physics, 2000 We study the influence of finite conductivity of metals on the Casimir effect. We put the emphasis on explicit theoretical evaluations which can help comparing experimental results with theory. The reduction of the Casimir force is evaluated for plane metallic plates. The reduction of the Casimir energy in the same configuration is also calculated.
Lambrecht, Astrid, Reynaud, Serge
openaire +3 more sources
Sunlight Communication System Built with Tunable 3D-Printed Optical Components
Photonics, 2022 In this paper, optical components are fabricated using a 3D printing method. The two following strategies are adopted: 1. combining 3D printing, “origami”, and metal coating/attaching to directly manufacture parabolic reflectors; 2.
Ching-Kai Shen +4 more
doaj +1 more source
Teoriya i praktika arkheologicheskikh issledovaniy, 2016 The article presents the circumstances of discovery in the territory of the Baraba forest-steppe (near Lake Wait, Karagatskom in the Novosibirsk region) of a metal mirror, heavily coated with oxides. The find has been subjected to the restoration at the Institute of Archaeology and Ethnography of the Siberian Branch of the Russian Academy of Sciences ...
Borodovskiy A., Tishkin A.
openaire +3 more sources
THE CASIMIR FORCE BETWEEN METALLIC MIRRORS [PDF]
The Ninth Marcel Grossmann Meeting, 2002 In order to compare recent experimental results with theoretical predictions we study the influence of finite conductivity of metals on the Casimir effect. The correction to the Casimir force and energy due to imperfect reflection and finite temperature are evaluated for plane metallic plates where the dielectric functions of the metals are modeled by ...
Lambrecht, Astrid +2 more
openaire +3 more sources
Materials & Design, 2022 Lattice structure has excellent mechanical properties to develop lightweight devices, and additive manufacture makes it possible to construct complex lattice without extra cost.
Ding Yang +3 more
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