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- Belitsky, Victor, 1955, et al.
(author)
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Prototype ALMA Band 5 Cartridge:Design and Performance
- 2009
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In: Proceedings of the 20TH INTERNATIONAL SYMPOSIUM ON SPACE TERAHERTZ TECHNOLOGY, Charlottesville, VA, USA, April 20-22, 2009, s. 2-5.
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Conference paper (peer-reviewed)abstract
- The Atacama Large Millimeter/submillimeterArray (ALMA), an international astronomy facility, is apartnership of East Asia, Europe and North America incooperation with the Republic of Chile and aims to build aninterferometer radio telescope consisting of more than 60antennas. The instrument is under construction at the Llano deChajnantor, about 50 km east of San Pedro de Atacama, Chile.This work presents a part of ALMA frontend, the development,design and performance of one of the frequency channels of theALMA receiver, the Band 5 prototype cartridge for 163 – 211GHz frequency band.
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| 2. |
- Belitsky, Victor, 1955, et al.
(author)
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Terahertz Instrumentation For Radio Astronomy
- 2009
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In: International Symposium on Terahertz Science and Technology between Japan and Sweden. ; , s. 28-29
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Conference paper (other academic/artistic)abstract
- Radio Astronomy was always a frontrunner in the demand on terahertz technology. Millimetre and sub-millimetre wave receivers operate at ground-based observatories for more than 20 years with real Terahertz instruments making its way to ground-based [1] and space-based observatories, e.g., Herschel HIFI, during last years.In this talk, we will look at the key requirements to the radio astronomy and environmental science terahertz receivers using heterodyne technology. The most promising and established technologies for high-resolution spectroscopy instrumentation will be discussed. Using results of the Group for Advanced Receiver Development for Onsala Space Observatory 20 m telescope, for Atacama Pathfinder Experiment (APEX) telescope and ALMA Project Band 5, we will illustrate the trends and achievements in the terahertz instrumentation for radio astronomy.
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| 3. |
- Desmaris, Vincent, 1977, et al.
(author)
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Design, simulations and optimization of micromachined Golay-cell based THz sensors operating at room temperature
- 2009
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In: Procedia Chemistry - Proceedings of the Eurosensors XXIII conference. ; 1:1, s. 1175-1178
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Conference paper (peer-reviewed)abstract
- An innovative wideband micro-machined terahertz (THz)sensor operating at room temperature is presented. By means of 3D finite element method (FEM) simulations, the original design of M. Golay was miniaturized and modified by the introduction of a second absorbing membrane providing simultaneously an inherently integrated capacitive read-out. With a help of advanced multi-objective design tools, the sensor design was optimized in terms of linear dimensions, material’s electrical and mechanical properties. Feasibility of the final structure and its tolerance to parameters variation during the fabrication was assessed through a Monte-Carlo analysis. The optimized sensor promises a bandwidth of 3.5 THz (0.5-4THz).
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