Metal mesh resonant filters for terahertz frequencies

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dc.contributor.authorMelo A.M.
dc.contributor.authorKornberg M.A.
dc.contributor.authorKaufmann P.
dc.contributor.authorPiazzetta M.H.
dc.contributor.authorBortolucci E.C.
dc.contributor.authorZakia M.B.
dc.contributor.authorBauer O.H.
dc.contributor.authorPoglitsch A.
dc.contributor.authorDa Silva A.M.P.A.
dc.date.accessioned2024-03-13T01:36:57Z
dc.date.available2024-03-13T01:36:57Z
dc.date.issued2008
dc.description.abstractThe interest in terahertz photometric and imaging measurements has motivated the development of bandpass resonant filters to be coupled to multiple-pixel devices such as bolometer arrays. Resonant grids are relatively simple to fabricate, exhibiting high transmission at the central frequency, a narrow bandpass, and good rejection of the side frequencies of the spectrum. We have fabricated filters centered at different frequencies between 0.4 and 10 THz, using photolithography and electroforming techniques. Transmission measurements have shown center frequencies and bandwidths close to the design predictions. The performance of the filters was found not to be critically dependent on small physical deformations in the mesh, becoming more noticeable at higher frequencies (i.e., for smaller physical sizes). Wider bandwidths, needed to attain higher sensitivities in the continuum, were obtained by changing the design parameters for filters at 2 and 3 THz. © 2008 Optical Society of America.
dc.description.firstpage6064
dc.description.issuenumber32
dc.description.lastpage6069
dc.description.volume47
dc.identifier.doi10.1364/AO.47.006064
dc.identifier.issn1539-4522
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/37487
dc.relation.ispartofApplied Optics
dc.rightsAcesso Restrito
dc.titleMetal mesh resonant filters for terahertz frequencies
dc.typeArtigo
local.scopus.citations89
local.scopus.eid2-s2.0-58949099298
local.scopus.subjectDesign parameters
local.scopus.subjectDifferent frequency
local.scopus.subjectHigh transmission
local.scopus.subjectHigher frequencies
local.scopus.subjectImaging measurements
local.scopus.subjectPhysical deformation
local.scopus.subjectTerahertz frequencies
local.scopus.subjectTransmission measurements
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=58949099298&origin=inward
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