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Type: Artigo de periódico
Title: Uncooled detectors of continuum terahertz radiation
Author: Kaufmann, P.
Marcon, R.
Kudaka, A.S.
Cassiano, M. M.
Fernandes, L.O.T.
Marun, A.
Pereyra, P.
Godoy, R.
Bortolucci, E.
Zakia, M. Beny
Diniz, J.A.
Silva, A.M. Pereira Alves da
Timofeevsky, A.V.
Nikolaev, V.A.
Abstract: THz continuum spectral photometry has new and unique applications in different civil and military areas presenting a number of distinctive advantages on the well known microwaves or mid- to near-infrared technologies. THz sensing is essential to investigate the emission mechanisms by high energy particle acceleration processes. Technical challenges appear to diagnose radiation produced by solar flare burst emissions measured from space as well as radiation produced by high energy electrons in laboratory accelerators. THz filters and detectors have been investigated for the construction of solar flare high cadence radiometers to operate outside the terrestrial atmosphere. Experimental setups have been assembled for testing THz continuum radiation response from distinct detectors: adapted commercial microbolometer array, pyroelectric module, and opto-acoustic (Golay cell). The results permitted the final design of a THz double radiometer using Golay cells to be flown in stratosphere balloon missions.
Subject: Far IR continuum spectral photometry
THz radiometers
THz sensors
Solar THz radiation
Editor: Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo
Rights: aberto
Identifier DOI: 10.1590/S2179-10742011000100027
Date Issue: 1-Jun-2011
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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