31 citations · 98 across the 6 of their papers we have counts for
6 papers
A New Strategy for Designing Dual-band Antennas Based on Double-layer Metasurfaces
Kristy Hecht, Nacer Chahat, Goutam Chattopadhyay +2
We present a new strategy for the design of dual-band planar antennas based on metasurfaces (MTSs) in the microwave and millimeter-wave regimes. It is based on a double layer struc…
Flat low-loss silicon gradient index lens for millimeter and submillimeter wavelengths
Fabien Defrance, Cecile Jung-Kubiak, Sofia Rahiminejad +6
We present the design, simulation, and planned fabrication process of a flat high resistivity silicon gradient index (GRIN) lens for millimeter and submillimeter wavelengths with v…
A 1.6:1 Bandwidth Two-Layer Antireflection Structure for Silicon Matched to the 190-310 GHz Atmospheric Window
Fabien Defrance, Cecile Jung-Kubiak, Jack Sayers +7
Although high-resistivity, low-loss silicon is an excellent material for THz transmission optics, its high refractive index necessitates antireflection treatment. We fabricated a w…
Stacked Wafer Gradient Index Silicon Optics with Integral Anti-reflection Layers
F. Defrance, G. Chattopadhyay, J. Connors +8
Silicon optics with wide bandwidth anti-reflection (AR) coatings, made of multi-layer textured silicon surfaces, are developed for millimeter and submillimeter wavelengths. Single…
SuperSpec: design concept and circuit simulations
Attila Kovács, Peter S. Barry, Charles M. Bradford +14
SuperSpec is a pathfinder for future lithographic spectrometer cameras, which promise to energize extra-galactic astrophysics at (sub)millimeter wavelengths: delivering 200--500 km…
Reversal of infall in SgrB2(M) revealed by Herschel/HIFI observations of HCN lines at THz frequencies
Rainer Rolffs, Peter Schilke, Claudia Comito +54
To investigate the accretion and feedback processes in massive star formation, we analyze the shapes of emission lines from hot molecular cores, whose asymmetries trace infall and…