An ultra-broadband optical system for ALMA Band 2+3
Date Issued
2016
Author(s)
Tapia, V.
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González, A.
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Barrueto, I.
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Mena, F. P.
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Reyes, N.
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•
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Yagoubov, P.
Abstract
ALMA is the largest radio astronomical facility in the world providing high sensitivity between 35 and 950 GHz, divided in 10 bands with fractional bandwidths between 19 and 36%. Having a lifespan of at least 30 years, ALMA carries out a permanent upgrading plan which, for the receivers, is focused on achieving better sensitivity and larger bandwidths. As result, an international consortium works on demonstrating a prototype receiver covering currents Bands 2 and 3 (67 to 116 GHz) which corresponds to a fractional bandwidth of 54%. Here we present the preliminary design, implementation and characterization of suitable refractive optics. Results indicate an excellent performance in good agreement with simulations.
Coverage
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII
All editors
Holland, Wayne S.; Zmuidzinas, Jonas
Series
Volume
9914
Start page
99142X
Conferenece
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII
Conferenece place
Edinburgh, UK
Conferenece date
26 June-1 July, 2016
Issn Identifier
0277-786X
Ads BibCode
2016SPIE.9914E..2XT
Rights
open.access
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Size
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Format
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