Results 21 to 30 of about 162,982 (292)
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
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
Photonic microstructures as laser mirrors [PDF]
, 1998 Deeply etched 1-D third-order Bragg reflectors have been used as mirrors for broad-area semiconductor lasers operating at 975-nm wavelength. From a threshold and efficiency analysis, we determine the mirror reflectivity to be approximately 95%.
De La Rue, Richard M. +4 more
core +1 more source
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
Optical magnetic mirrors without metals
Optica, 2014 The reflection of an optical wave from a metal, arising from strong interactions between the optical electric field and the free carriers of the metal, is accompanied by a phase reversal of the reflected electric field. A far less common route to achieve high reflectivity exploits strong interactions between the material and the optical magnetic field ...
Liu, Sheng +11 more
openaire +3 more sources
Metamaterial Coatings for Broadband Asymmetric Mirrors [PDF]
, 2006 We report on design and fabrication of nano-composite metal-dielectric thin film coatings with high reflectance asymmetries. Applying basic dispersion engineering principles to model a broadband and large reflectance asymmetry, we obtain a model ...
A. Chen +20 more
core +2 more sources
Principles and promise of Fabry-Perot resonators at terahertz frequencies [PDF]
, 2011 Fabry–Perot resonators have tremendous potential to enhance the sensitivity of spectroscopic systems at terahertz (THz) frequencies. Increasing sensitivity will be of benefit in compensating for the relatively low power of current high resolution ...
Blake, G. A., Braakman, R.
core +1 more source
Controlling molecular broadband-emission by optical confinement [PDF]
, 2008 We investigate experimentally and theoretically the fluorescence emitted by molecular ensembles as well as spatially isolated, single molecules of an organic dye immobilized in a quasi-planar optical microresonator at room temperature.
Failla, Antonio Virgilio +5 more
core +1 more source
Fundamental study on optical performance of low-melting-point metal mirrors for space telescopes
Results in Optics, 2023 The installation of telescopes with larger primary mirrors in outer space is required for the study of the early universe. However, the shipping, assembling and maintenance of the primary mirror are technical challenges.
Eisuke Imaizumi +4 more
doaj +1 more source
Isotope Effects in Switchable Metal-Hydride Mirrors [PDF]
Physical Review Letters, 1999 Measurements of optical reflectance, transmittance, and electrical resistivity on the switchable mirror systems YHx and YDx show that the absorption of hydrogen induces the same variations as that of deuterium. In both cases there is a weak transparency window for the metallic dihydride (dideuteride) phase and a yellowish transparency in the insulating
van Gogh, A.T.M. +2 more
openaire +2 more sources