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New artificial dielectric metamaterial and its application as a terahertz antireflection coating
journal contribution
posted on 2023-07-26, 13:59 authored by Jin Zhang, Peter A. R. Ade, Philip D. Mauskopf, Lorenzo Moncelsi, Giorgio Savini, Nicola WhitehouseWe describe a novel artificial dielectric material that has applications at millimeter and submillimeter
wavelengths. The material is manufactured from layers of metal mesh patterned onto thin polypropylene
sheets, which are then bonded together using a hot pressing process to provide planar rugged discs that
can be reliably cycled to cryogenic temperatures. The refractive index of this material can be tuned by adjusting the geometry and spacing of the metal mesh layers. We demonstrate its usage by designing and characterizing a broadband antireflection coating for a Z-cut crystalline quartz plate. The coating was fabricated and applied to the quartz using the hot press technique and characterized using a Fourier transform spectrometer. The performance is shown to be in good agreement with a high frequency structure simulator and transmission line modeling results.
History
Refereed
- Yes
Volume
48Issue number
35Page range
6635-6642Publication title
Applied OpticsISSN
2155-3165External DOI
Publisher
Optical Society of AmericaLanguage
- other
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Legacy posted date
2016-11-25Legacy creation date
2016-11-18Legacy Faculty/School/Department
ARCHIVED Faculty of Science & Technology (until September 2018)Usage metrics
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