An ultra-broadband optical system for ALMA Band 2+3

Date Issued
2016
Author(s)
Tapia, V.
•
•
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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•
•
Yagoubov, P.
DOI
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
Uri
Url
Issn Identifier
0277-786X
Ads BibCode
2016SPIE.9914E..2XT
Rights
open.access
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