LEADER 04197nam 22006735 450 001 9910254631203321 005 20250609110101.0 010 $a3-319-19363-5 024 7 $a10.1007/978-3-319-19363-2 035 $a(CKB)3710000000476904 035 $a(EBL)4178268 035 $a(SSID)ssj0001585034 035 $a(PQKBManifestationID)16264566 035 $a(PQKBTitleCode)TC0001585034 035 $a(PQKBWorkID)14865475 035 $a(PQKB)11218241 035 $a(DE-He213)978-3-319-19363-2 035 $a(MiAaPQ)EBC4178268 035 $a(PPN)190536799 035 $a(MiAaPQ)EBC6241747 035 $a(EXLCZ)993710000000476904 100 $a20150915d2016 u| 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aDevelopment of Coherent Detector Technologies for Sub-Millimetre Wave Astronomy Observations /$fby Boon Kok Tan 205 $a1st ed. 2016. 210 1$aCham :$cSpringer International Publishing :$cImprint: Springer,$d2016. 215 $a1 online resource (235 p.) 225 1 $aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053 300 $a"Doctoral thesis accepted by University of Oxford, Oxford, UK." 311 08$a3-319-19362-7 320 $aIncludes bibligraphical references at the end of each chapters and index. 327 $aIntroduction,- 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. 330 $aThe thesis describes the development of receiver technologies for sub-millimetre astronomy instruments, focusing on high performance coherent cryogenic detectors operating close to the superconductor gap frequency. The mixer chip which comprises the SIS devices, fed by a unilateral finline and matching planar circuits was fabricated on 15 micron silicon substrate using the recently developed Silicon-On-Insulator (SOI) technology. This offered broadband IF and RF performance, with fully integrated on-chip planar circuits resulting in an easily reproducible mixer chip and a simple mixer block. An important consequence of this design is that it can be extended to the supra-THz region and making the fabrication of multi-pixel heterodyne arrays feasible. The extension of the operation of major telescopes such as ALMA, APEX and the GLT from single pixel to large format arrays is the subject of extensive research at present time since it will allow fast mapping combined with high resolution of the submillimetre sky. The technology described in this thesis makes a major contribution to this effort. 410 0$aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053 606 $aAstronomy$vObservations 606 $aAstronomy?Observations 606 $aLasers 606 $aPhotonics 606 $aAstronomy, Observations and Techniques$3https://scigraph.springernature.com/ontologies/product-market-codes/P22014 606 $aOptics, Lasers, Photonics, Optical Devices$3https://scigraph.springernature.com/ontologies/product-market-codes/P31030 615 0$aAstronomy 615 0$aAstronomy?Observations. 615 0$aLasers. 615 0$aPhotonics. 615 14$aAstronomy, Observations and Techniques. 615 24$aOptics, Lasers, Photonics, Optical Devices. 676 $a520 700 $aTan$b Boon Kok$4aut$4http://id.loc.gov/vocabulary/relators/aut$0803797 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910254631203321 996 $aDevelopment of Coherent Detector Technologies for Sub-Millimetre Wave Astronomy Observations$91805295 997 $aUNINA