Alexander Vystavkin, Alla Kovalenko, Sergey Shitov, Andrey Pestryakov, Sergey Bankov, Vladimir Zabolotny, Elena Frolova, Ilya Cohn, Oleg Koryukin, Artem Kuzmin, Anton Zubovich, Andrey Uvarov, Aleksey Il'in, Vladimir Trofimov, Alexander Chernikov, Vyacheslav Vdovin, Vladimir Perminov, Oleg Bol'shakov, Marat Mingaliev, Gregory Yakopov
We describe design of two-polarization imaging array of 7 antenna-coupled TES-bolometers. The fabrication procedure
involves both electron beam lithography and convenient optical lithography resulting in submicron definition of TES
absorber films (down to ~ 0.2 μm) integrated within planar submm-wave antenna. Concept of matching optics between
the long-focus optical telescope and lens-antenna TES bolometer array is described. Two-mirror short-focusing beam
concentrator in combination with image rotator provides signal coupling to immersion lenses of the array. Each TES
bolometer is coupled via microstrip transmission line to only one polarization of two-polarization crossed double-slot
lens-antenna. Design of cryogenic 0.3-K system accommodating the matching optics is presented. We describe
multiplexing readout scheme, which combines tomography, rotational scanning of the image and frequency domain
division methods that drastically reduce the amount of wiring and substantially increase the final image resolution,
especially for low-dimension arrays.
We present a design concept for a new state-of-the-art balloon borne atmospheric monitor that will allow enhanced limb sounding of the Earth's atmosphere within the submillimeter and far-infrared wavelength spectral range: TELIS, TErahertz and submm LImb Sounder. The instrument is being developed by a consortium of major European institutes that includes the Space Research Organization of the Netherlands (SRON), the Rutherford Appleton Laboratory (RAL) will utilize state-of-the-art superconducting heterodyne technology and is designed to be a compact, lightweight instrument cpaable of providing broad spectral coverage, high spectral resolution and long flight duration (~24 hours duration during a single flight campaign). The combination of high sensitivity and extensive flight duration will allow evaluation of the diurnal variation of key atmospheric constitutenets sucyh as OH, HO2, ClO, BrO togehter will onger lived constituents such as O3, HCL and N2O. Furthermore, TELIS will share a common balloon platform to that of the MIPAS-B Fourier Transform Spectrometer, developed by the Institute of Meteorology and Climate research of the over an extended spectral range. The combination of the TELIS and MIPAS instruments will provide atmospheric scientists with a very powerful observational tool. TELIS will serve as a testbed for new cryogenic heterodyne detection techniques, and as such it will act as a prelude to future spaceborne instruments planned by the European Space Agency (ESA).
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