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SuperSpec: design concept and circuit simulations

Kovács, Attila and Barry, Peter S. and Bradford, Charles M. and Chattopadhyay, Goutam and Day, Peter and Doyle, Simon and Hailey-Dunsheath, Steve and Hollister, Matthew and McKenney, Christopher and LeDuc, Henry G. and Llombart, Nuria and Marrone, Daniel P. and Mauskopf, Philip and O'Brient, Roger and Padin, Stephen and Swenson, Loren J. and Zmuidzinas, Jonas (2012) SuperSpec: design concept and circuit simulations. In: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI. Proceedings of SPIE. No.8452. Society of Photo-Optical Instrumentation Engineers , Bellingham, WA, Art. No. 84522G. ISBN 978-0-8194-9153-4. http://resolver.caltech.edu/CaltechAUTHORS:20130215-113118243

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Abstract

SuperSpec is a pathfinder for future lithographic spectrometer cameras, which promise to energize extra-galactic astrophysics at (sub)millimeter wavelengths: delivering 200–500 km s^(-1) spectral velocity resolution over an octave bandwidth for every pixel in a telescope’s field of view. We present circuit simulations that prove the concept, which enables complete millimeter-band spectrometer devices in just a few square-millimeter footprint. We evaluate both single-stage and two-stage channelizing filter designs, which separate channels into an array of broad-band detectors, such as bolometers or kinetic inductance detector (KID) devices. We discuss to what degree losses (by radiation or by absorption in the dielectric) and fabrication tolerances affect the resolution or performance of such devices, and what steps we can take to mitigate the degradation. Such design studies help us formulate critical requirements on the materials and fabrication process, and help understand what practical limits currently exist to the capabilities these devices can deliver today or over the next few years.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1117/12.927160DOIArticle
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1363015PublisherArticle
ORCID:
AuthorORCID
Chattopadhyay, Goutam0000-0001-7942-5025
Additional Information:© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). M. Hollister and L. Swenson acknowledge funding from the NASA Postdoctoral Program. C. McKenney, E. Shirokoff, and L. Swenson acknowledge support by the Keck Institute for Space Studies. We also acknowledge funding for the development of SuperSpec by the NASA Astrophysics Research and Analysis grant # 399131.02.06.03.43. P. S. Barry acknowledges the continuing support from the Science and Technology Facilities Council Ph.D studentship programme and grant programmes ST/G002711/1 and ST/J001449/1.
Group:Keck Institute for Space Studies
Funders:
Funding AgencyGrant Number
NASA Postdoctoral ProgramUNSPECIFIED
Keck Institute for Space Studies (KISS)UNSPECIFIED
NASA399131.02.06.03.43
Science and Technology Facilities Council (STFC)ST/G002711/1
Science and Technology Facilities Council (STFC)ST/J001449/1
Record Number:CaltechAUTHORS:20130215-113118243
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130215-113118243
Official Citation:Attila Kovács ; Peter S. Barry ; Charles M. Bradford ; Goutam Chattopadhyay ; Peter Day ; Simon Doyle ; Steve Hailey-Dunsheath ; Matthew Hollister ; Christopher McKenney ; Henry G. LeDuc ; Nuria Llombart ; Daniel P. Marrone ; Philip Mauskopf ; Roger C. O'Brient ; Stephen Padin ; Loren J. Swenson and Jonas Zmuidzinas "SuperSpec: design concept and circuit simulations", Proc. SPIE 8452, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI, 84522G (September 24, 2012); doi:10.1117/12.927160; http://dx.doi.org/10.1117/12.927160
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36957
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:19 Feb 2013 21:11
Last Modified:10 Apr 2017 18:53

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