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Development of Coherent Detector Technologies for Sub-Millimetre Wave Astronomy Observations

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Development of Coherent Detector Technologies for Sub-Millimetre Wave Astronomy Observations/ by Boon Kok Tan.
Author:	Tan, Boon Kok.
Description:	XXIV, 219 p. 129 illus., 93 illus. in color.online resource. :
Contained By:	Springer Nature eBook
Subject:	Observations, Astronomical. -
Online resource:	https://doi.org/10.1007/978-3-319-19363-2
ISBN:	9783319193632

Development of Coherent Detector Technologies for Sub-Millimetre Wave Astronomy Observations
Tan, Boon Kok.

Development of Coherent Detector Technologies for Sub-Millimetre Wave Astronomy Observations[electronic resource] /by Boon Kok Tan. - 1st ed. 2016. - XXIV, 219 p. 129 illus., 93 illus. in color.online resource. - Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053. - Springer Theses, Recognizing Outstanding Ph.D. Research,.

Introduction,- Multiple flare-angle smooth-walled horn -- SIS Mixer theory -- Design of unilateral finline SIS mixer -- Single-ended mixer tests -- Single-chip integrated balanced SIS mixer -- Design of 700 GHz single sideband SIS mixers -- The characteristics of an SIS junction near its superconducting gap -- Generation of local oscillator signal via photomixing -- CO (3→2) Observations of NGC 2976 and NGC 3351 -- Concluding remarks -- A Ancillary data of individual tested device -- B Ancillary data of individual tested balanced device -- C List of all beam patterns measured up to date -- D 230 GHz scalable design -- References.

The thesis describes the development of receiver technologies for sub-millimetre astronomy instruments, focusing on high performance coherent cryogenic detectors operating close to the superconductor gap frequency. The mixer chip which comprises the SIS devices, fed by a unilateral finline and matching planar circuits was fabricated on 15 micron silicon substrate using the recently developed Silicon-On-Insulator (SOI) technology. This offered broadband IF and RF performance, with fully integrated on-chip planar circuits resulting in an easily reproducible mixer chip and a simple mixer block. An important consequence of this design is that it can be extended to the supra-THz region and making the fabrication of multi-pixel heterodyne arrays feasible. The extension of the operation of major telescopes such as ALMA, APEX and the GLT from single pixel to large format arrays is the subject of extensive research at present time since it will allow fast mapping combined with high resolution of the submillimetre sky. The technology described in this thesis makes a major contribution to this effort.

ISBN: 9783319193632

Standard No.: 10.1007/978-3-319-19363-2doiSubjects--Topical Terms:

1254353
Observations, Astronomical.

LC Class. No.: QB4

Dewey Class. No.: 520

Development of Coherent Detector Technologies for Sub-Millimetre Wave Astronomy Observations
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520 $a The thesis describes the development of receiver technologies for sub-millimetre astronomy instruments, focusing on high performance coherent cryogenic detectors operating close to the superconductor gap frequency. The mixer chip which comprises the SIS devices, fed by a unilateral finline and matching planar circuits was fabricated on 15 micron silicon substrate using the recently developed Silicon-On-Insulator (SOI) technology. This offered broadband IF and RF performance, with fully integrated on-chip planar circuits resulting in an easily reproducible mixer chip and a simple mixer block. An important consequence of this design is that it can be extended to the supra-THz region and making the fabrication of multi-pixel heterodyne arrays feasible. The extension of the operation of major telescopes such as ALMA, APEX and the GLT from single pixel to large format arrays is the subject of extensive research at present time since it will allow fast mapping combined with high resolution of the submillimetre sky. The technology described in this thesis makes a major contribution to this effort.
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