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Overview of the Design, Fabrication and Performance Requirements of Micro-Spec, an Integrated Submillimeter SpectrometerMicro-Spec is a compact submillimeter (350-700 GHz) spectrometer which uses low loss superconducting niobium microstrip transmission lines and a single-crystal silicon dielectric to integrate all of the components of a grating-analog spectrometer onto a single chip. Here we present details of the fabrication and design of a prototype Micro-Spec spectrometer with resolution, R64, where we use a high-yield single-flip wafer bonding process to realize instrument components on a 0.45 m single-crystal silicon dielectric. We discuss some of the electromagnetic design concerns (such as loss, stray-light, cross-talk, and fabrication tolerances) for each of the spectrometer components and their integration into the instrument as a whole. These components include a slot antenna with a silicon lens for optical coupling, a phase delay transmission line network, parallel plate waveguide interference region, and aluminum microstrip transmission line kinetic inductance detectors with extremely low cross-talk and immunity to stray light. We have demonstrated this prototype spectrometer with design resolution of R64. Given the optical performance of this prototype, we will also discuss the extension of this design to higher resolutions suitable for balloon-flight.
Document ID
20150016073
Document Type
Presentation
Authors
Barrentine, Emily M.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Noroozian, Omid
(Oak Ridge Associated Universities Greenbelt, MD, United States)
Brown, Ari D.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Cataldo, Giuseppe
(Universities Space Research Association Greenbelt, MD, United States)
Ehsan, Negar
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Hsieh, Wen-Ting
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Stevenson, Thomas R.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
U-Yen, Kongpop
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Wollack, Edward J.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Moseley, S. Harvey
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
August 18, 2015
Publication Date
July 20, 2015
Subject Category
Instrumentation And Photography
Report/Patent Number
GSFC-E-DAA-TN25496
Meeting Information
International Workshop on Low Temperature Detectors(Grenobl)
Funding Number(s)
CONTRACT_GRANT: NNH06CC03B
CONTRACT_GRANT: NNG06EO90A
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
spectrometer
submillimeter waves

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