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THz imaging and photometry of thermal and non-thermal sources

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Author(s):
Arline Maria Melo
Total Authors: 1
Document type: Doctoral Thesis
Press: Campinas, SP.
Institution: Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Elétrica e de Computação
Defense date:
Examining board members:
José Alexandre Diniz; Mirabel Cerqueira Rezende; Marta Maria Cassiano; Maria Beny Zakia Morosini; Jacobus Willibrordus Swart; Hugo Enrique Hernández Figueroa
Advisor: José Alexandre Diniz
Abstract

This work presents important information on THz technology, currently considered a technological challenge and state of the art in different areas of development. To form a THz imaging system, still unavailable commercially, efforts in different fronts had been excused. Cameras for medium IR (8 - 14 µm) had been acquired, characterized and tested, with excellent and unknown results in Solar Physics, application considered for this work. Filters of resonant metal mesh for diverse bands in the THz region (centered in 0,4, 0,67, 0,85, 2, 4 and 8,5 THz) had been projected, manufactured and tested showing excellent results. Finally a first imaging system was mounted connecting the filters of resonant mesh to the IR camera without its original optics of germanium. The first THz images of a warm resistance are presented, proving the functionality of the original concept. The developments and studies presented here will contribute for two space experiments recently considered, DESIR ( Solar Detection of eruptive Infrared Radiation) and SIRA ( Submillimeter-wave you the solar InfraRed Activity emissions), requiring the use of THz systems for observations of transient in solar active plasmas in different frequencies, from the ground and in the space (AU)

FAPESP's process: 04/07835-1 - Bolometric sensors for the THZ band in focal planes of radiation collectors for meteorological and solar applications
Grantee:Arline Maria Melo
Support Opportunities: Scholarships in Brazil - Doctorate