Results 21 to 30 of about 313,959 (302)
Morphology and structure of bright electrodeposited metal coatings
Macedonian Journal of Chemistry and Chemical Engineering, 2011 The properties which determine whether the metal surface is mirror bright are precisely determined by scanning electron microscopy (SEM), atomic forces microscopy (AFM), scanning tunneling microscopy (STM) and reflectance spectrophotometry investigations.
Miomir G. Pavlović +1 more
doaj +1 more source
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
From vertical-cavities to hybrid metal/photonic-crystal nanocavities: towards high-efficiency nanolasers [PDF]
, 2012 We provide a numerical study showing that a bottom reflector is indispensable to achieve unidirectional emission from a photonic-crystal (PhC) nanolaser.
Huang, Jingqing +2 more
core +1 more source
Measurement and correction of two-sided freeform optical elements with combined tactile-optical metrology equipment [PDF]
EPJ Web of Conferences, 2019 Freeform optical elements are state of the art for several years to fabricate very high performance optical systems with the necessity of, e.g., strong folding in mirror system or correction of typical asymmetric aberrations in mirror systems as well as ...
Hartung Johannes +5 more
doaj +1 more source
3D modelling of enhanced surface emission using surface roughening [PDF]
, 2006 A 3D FDTD modelling is used to study the effect of surface roughening on the vertical emission of a point source emitting at lambda0=0.94 mum embedded in GaAs with a mirror behind the dipole.
Buss, IJ +7 more
core +2 more sources
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
Nanophotonics, 2020 We propose a unique random metal nanohemisphere on mirror (NHoM) structure to tune the surface plasmon (SP) resonance in a flexible manner. The SP resonance peak was split into two peaks owing to the strong coupling between the SP mode in the metal ...
Okamoto Koichi +4 more
doaj +1 more source
Applied Sciences, 2020 The mirror unit installation error of the solar parabolic dish concentrator can adversely affect its optical performance causing optical intercept losses and hot spots on the absorber surface, which in turn affect safety.
Jian Yan, Youduo Peng, Duzhong Nie
doaj +1 more source
FDTD Simulation and Quantitative Analysis of Dipole Mirror Effect
Taiyuan Ligong Daxue xuebao, 2022 The local plasma resonance of noble metal nanoparticles can significantly enhance the visible light response of wide bandgap semiconductors, but the absorption coefficient of noble metal nanoparticles with small volume and strong scattering is low, which
Ting YANG +4 more
doaj +1 more source
Properties of a Variable-delay Polarization Modulator [PDF]
, 2011 We investigate the polarization modulation properties of a variable-delay polarization modulator (VPM). The VPM modulates polarization via a variable separation between a polarizing grid and a parallel mirror.
Adachi +41 more
core +2 more sources