Results 261 to 270 of about 395,732 (299)

Metal mesh filters for THz applications

2007 Joint 32nd International Conference on Infrared and Millimeter Waves and the 15th International Conference on Terahertz Electronics, 2007
The Astronomy Instrumentation Group at Cardiff University has been developing metal mesh optical filters for more than 30 years. They are currently in use in ground-, balloon- and space-based astronomical instruments and in many laboratory-based THz applications.
C.E. Tucker, P.A.R. Ade
openaire   +1 more source

Analytical model for metal–insulator–metal mesh waveguide architectures

Journal of the Optical Society of America B, 2012
Metal–insulator–metal (MIM) waveguide mesh structures utilize X-junctions as power distribution elements to create interference and feedback effects, thereby providing rich device functionality. We present a generalized analytical model for MIM mesh structures by incorporating a modified characteristic impedance model for MIM junctions into the ...
Charles Lin, Mohamed A. Swillam, Amr S. Helmy   +2 more
openaire   +1 more source

Resonant metal-mesh bandpass filters for the far infrared

Applied Optics, 1994
The spectral performance of freestanding resonant metal-mesh bandpass filters operating with center frequencies ranging from 585 GHz to 2.1 THz is presented. These filters are made up of a 12-µm-thick copper film with an array of cross-shaped apertures that fill a circular area with a 50-mm diameter.
D W, Porterfield, J L, Hesler, R, Densing, E R, Mueller, T W, Crowe, R M, Weikle Ii   +5 more
openaire   +2 more sources

Superoleophobic Surfaces Obtained via Hierarchical Metallic Meshes

Langmuir, 2016
Hierarchical metallic surfaces demonstrating pronounced water and oil repellence are reported. The surfaces were manufactured with stainless-steel microporous meshes, which were etched with perfluorononanoic acid. As a result, a hierarchical relief was created, characterized by roughness at micro- and sub-microscales.
Roman, Grynyov, Edward, Bormashenko, Gene, Whyman, Yelena, Bormashenko, Albina, Musin, Roman, Pogreb, Anton, Starostin, Viktor, Valtsifer, Vladimir, Strelnikov, Alex, Schechter, Srikanth, Kolagatla   +10 more
openaire   +2 more sources

On the mesh motion for ALE modeling of metal forming processes

Finite Elements in Analysis and Design, 2002
Arbitrary Lagrangian-Eulerian finite element method is being increasingly used for simulation of metal-forming operations, due to its capability to combine the features of both Lagrangian and Eulerian approaches in a single analysis. An important consideration in applying this approach is an algorithm which decides upon the motion of all degrees of ...
Gadala, M. S., Movahhedy, M. R., Wang, J.   +2 more
openaire   +2 more sources

Near-field effects in multilayer inductive metal meshes

Applied Optics, 2002
The transmittance of inductive single-layer and multilayer cross-shaped metal meshes has been calculated with the Micro-Stripes software program. The effect of symmetric and asymmetric alignment of the crosses of one mesh with respect to another was studied and compared with transmission line theory, which presents the nonaligned case.
Karl D, Möller, Oren, Sternberg, Haim, Grebel, Kenneth P, Stewart   +3 more
openaire   +2 more sources

Variable Metal Mesh Coupler for Far Infrared Lasers

Applied Optics, 1970
In a far infrared molecular laser the traditional pierced output mirror has been replaced by an infrared interference filter, consisting of two metal mesh reflector grids. By adjusting the spacing between the two parallel grids, the reflectance of the filter can be varied. Theory and experiment of this variable reflector are presented.
R, Ulrich, T J, Bridges, M A, Pollack
openaire   +2 more sources

High-accuracy design for mesh antennas considering the metallic mesh

International Journal of Mechanical Sciences, 2022
Jun Zhang, Baiyan He, Rui Nie, Guobiao Wang, Lianhong Zhang, Hongbo Yu, Xiaofei Ma   +6 more
openaire   +1 more source

Radiological features of ingested metallic mesh earphone pieces

Pediatric Radiology, 2008
Foreign body ingestion remains a frequent cause of morbidity in infants and children. Symptoms vary with size, shape, location and composition of the foreign body. Flat objects tend to rotate to the greatest diameter of the esophageal lumen and become oriented in the coronal plane.
Dustin, Dalgorf, Keith, Trimble, Blake, Papsin, Vito, Forte   +3 more
openaire   +2 more sources

Cryogenic metal mesh bandpass filters for submillimeter astronomy

Applied Optics, 1984
The design and performance of a tunable double-half-wave bandpass filter centered at 286 microns (Delta lambda/lambda = 0.16) and operating at cryogenic temperatures (for astronomy applications) are presented. The operating principle is explained, and the fabrication of the device, which comprises two identical mutually coupled Fabry-Perot filters with
openaire   +2 more sources