2015 Proceedings

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2015 Table of Contents

TWENTY-SIXTH INTERNATIONAL SYMPOSIUM

ON SPACE TERAHERTZ TECHNOLOGY

March 16-18, 2015

Harvard-Smithsonian Center for Astrophysics

Harvard University, Cambridge, Massachusetts

1. Session 1 Systems for Space Applications, Chair: Imran Mehdi

   • Millimetron: the Next Step of FIR Astronomy

     A. Smirnov, Th. de Graauw, A. Baryshev, P. de Bernardis, S. Likhachev on behalf of the Milletron team

   • A Terahertz Superconducting Receiver Instrumented on a Low Power Space Cryocooler

     J. Kawamura, K. Stone, L. Burton, M. Larson, J. Kloosterman, and J. Young

   • The Low-Cost Upper-Atmosphere Sounder (LOCUS)

     S. P. Rea, B. N. Ellison, B. Swinyard, A. Valavanis, Y. Han, E. H. Linfield, A. G. Davies, C. Saunders, S. Parkes, D. Gerber, M. Henry, H. Wang, B. Alderman, 0. Auriacombe, T. Rawlings, M. Crooke, T. Bradshaw

   • Kinetic Inductance Detectors for Space: SPACEKID Perspective

     A. Baryshev, M. Griffin, J. Baselmans, I. Walker, P. Hargrave, S. Doyle, A. Monfardini, J. Martin-Pintado, S. Yates, L. Ferrari, J. Bueno, K, N. Llombart, A. Neto, A. G. Gutierrez, M. Calvo, J. K. Kramer, A. D'Abbado, J. Goupy, A. Bideaud, P. Barry, M. Grim, T.M. Klapwijk, K. Wood

   • Space and Ground-Based New Tools for THz Solar Flare Observations

     P. Kaufmann, A. Abrantes, E. C. Bortolucci, L. O. T. Fernandes, G. I. Kropotov, A. S. Kudaka, N. Machado, R. Marcon, V. Nicolaev, and A. Timofeevsky

2. Session 2 Hot Electron Bolometers, Chair: Sheng-Cai Shi

   • Study of MgB2 HEB Mixers vs the LO Frequency and the Bath Temperature

     S. Cherednichenko, E. Novoselov, S. Bevilacqua, H. Shibata and Y. Tokura

   • Josephson vs HEB Mixing in Superconducting MgB2 THz Heterodyne Detectors

     D. P. Cunnane, N. Acharya, M. A. Wolak, X. X. Xi, and B. S. Karasik

   • 1.9 THz Waveguide HEB Mixers for the upGREAT Low Frequency Array

     P. Pütz, D. Büchel, K. Jacobs, M. Schultz and C.E. Honingh

   • A 2 × 2 Array Receiver at 1.4 THz Based on HEB Mixers and a Fourier Phase Grating Local Oscillator

     X.X. Liu, D. J. Hayton, Y.C. Luo, L. Wei, N. V. J.R. Gao, and C. Groppi

3. Session 3 Receivers, Chair: Patrick Pütz

   • upGREAT: Status of the 1.9 to 2.5 THz Heterodyne Array for SOFIA

     C. Risacher, N. Reyes, R. Güsten, J. Stutzki, H.-W. Hübers, P. Pütz, A. Bell, D. Büchel, I. Camara, R. Castenholz, M. Choi, U. Graf, S. Heyminck, C. Honingh, K. Jacobs, M. Justen, B. Klein, T. Klein, C. Leinz, H. Richter, O. Ricken, A. Semenov, A. Wunsch

   • The NOEMA Front-End

     J.Y. Chenu, A. Navarrini, Y. Bortolotti, G. Butin, A.L. Fontana, S. Mahieu, D. Maier, F. Mattiocco, P. Serres, M. Berton, O. Garnier, Q. Moutote, M. Parioleau, B. Pissard, and J. Reverdy

   • An SIS Mixer Based Focal-Plane Array at 230 GHz

     J. Leech, G. Yassin, B. K. Tan, Y. Zhou, J. Garrett and P. Grimes

   • A Compact Low-Power 874 GHz Schottky Receiver for the IceCube Radiometer

     E. W. Bryerton, J. L. Hesler, S. A. Retzloff, and T. W. Crowe

   • 4×1-Pixel Heterodyne Array Development at 1.9 THz

     J. Kloosterman, J. Kawamura, R. Lin, F. Boussaha, J. Siles, B. Bumble, C. Lee and I. Mehdi

   • A 230GHz MMIC-based Sideband Separating Receiver

     T. Reck, E. Schlect, R. Dengler, W. Deal, and G. Chattopadhyay

4. Session 4 Bolometric Spectrometers, Chair: Jamie Leech

   • Progress on the CAmbridge Emission Line Surveyor (CAMELS)

     C. N. Thomas, R. Blundell, D. Glowacka, D. J. Goldie, P. Grimes, E. de L. Acedo, S. Paine, S. Withington and L. Zeng

   • WSPEC: A Waveguide Filter Bank Spectrometer

     G. Che, S. A. Bryan, M. Underhill, P. Mauskopf, C. Groppi, G. Jones, B. R. Johnson, H. McCarrick, D. Flanigan, and P. Day

   • µ-Spec: An Efficient Compact Integrated Spectrometer for Submillimeter Astrophysics

     O. Noroozian, E. Barrentine, A. Brown, G. Cataldo, N. Ehsan, W.-T. Hsieh, T. Stevenson, K. U-yen, E. Wollack, and S. H. Moseley

5. Session 5 Sources, Chair: Eric Bryerton

   • A 600GHz High Power Tripler for Space Applications

     H. J. Gibson, O. Cojocari, I. Oprea, B. Thomas, T. Narhi

   • Development of Sources and Receivers to Cover 1.25-1.51 THz

     J. L. Hesler, E. W. Bryerton, D. Koller and S. A. Retzloff

   • Development of High-Power Multi-Pixel LO Sources at 1.47 THz and 1.9 THz for Astrophysics: Present and Future

     J. V. Siles, R. H. Lin, C. Lee, E. Schlecht, A. Maestrini, P. Bruneau, A. Peralta, J. Kloosterman, J. Kawamura and I. Mehdi

   • Characterisation of THz Schottky Diodes for MetOp-SG Instruments

     S. Khanal, T. Kiuru, B. Thomas, J. Mallat, C. Pinta, M. Nagel, A. Walber, V. Kangas, M. Perichaud, M. Brandt, T. Närhi , and A. V. Räisänen

6. Session 6 Quantum Cascade Lasers, Chair: Jonathan Kawamura

   • Terahertz Quantum Cascade Amplifier

     Y. Ren, R. Wallis, Y. D. Shah, D. S. Jessop, R. Degl'Innocenti, A. Klimont, V. Kamboj, H. E. Beere, and D. A. Ritchie

   • 4.7-THz Local Oscillator for GREAT

     H. Richter, M. Wienold, L. Schrottke, K. Biermann, H. T. Grahn, and H.-W. Hübers

   • A 2.7 THz Integrated Heterodyne Receiver Based on a Low Power Consumption Quantum Cascade Laser

     W. Miao, Z. Lou, G. Y. Xu, J. Hu, S. L. Li, W. Zhang, K. M. Zhou, Q. J. Yao, K. Zhang, W. Y. Duan, S. C. Shi, R. Colombelli, H. E. Beere, and D. A. Ritchie

   • Fourier Phase Grating for THz Multi-Beam Local Oscillators

     Y. C. Luo, X. X. Liu, D. J. Hayton, L. Wei, J. R. Gao, and C. Groppi

   • Waveguide Embedding of a Double Metal 1.9THz QCL into a Split Block With Diagonal Horn Antenna

     M. Justen, K. Otani, D. Tureinkova, F. Castellano, U. U. Graf, and J. Faist

7. Session 7 Instrumentation for CMB Observations, Chair: John Kovac

   • Antenna Coupled TES Bolometers for BICEP-2 and 3, Keck Array, and SPIDER

     R. O'Brient, for the BICEP / Keck Array and Spider Collaborations

   • The ACTPol and Advanced ACTPol Instruments

     J. J. McMahon, and the ACT collaboration

   • Feedhorn-Coupled Transition-Edge Superconducting Bolometer Arrays for Cosmic Microwave Background Polarimetry

     J. Hubmayr, J. Austermann, J. Beall, D. Becker, H.-M. Cho, R. Datta, S. M. Duff, E. Grace, N. Halverson, S. W. Henderson, G. C. Hilton, S.-P. Ho, K. D. Irwin, B. J. Koopman, D. Li, J. McMahon, C. Munson, M. D. Niemack, C. Pappas, B. L. Schmitt, S. M. Simon, S. T. Staggs, J. V. Lanen, E. Wollack

   • Design of Dual-Polarization Horn-Coupled Kinetic Inductance Detectors for Cosmic Microwave Background Polarimetry

     S. Bryan, K. Bradford, G. Che, P. Day, D. Flanigan, B. R. Johnson, G. Jones, B. Kjellstrand, M. Limon, P. Mauskopf, H. McCarrick, A. Miller, and B. Smiley

   • Design of MKID Focal Plane Array for LiteBIRD

     Y. Sekimoto, Ken.ichi Karatsu, T. Nitta, M. Sekine, S. Sekiguchi, T. Okada, S. Shu, T. Noguchi, A. Dominjon, and M. Naruse

   • Progress on Silicon Bolometers for (Sub)-Millimeter Astronomy: From ArTéMiS to Future B-Mode Detection Space Missions

     V. Revéret, L. Rodriguez

8. Session 8 History & Current Developments (Invited), Chair: Tony Stark

   • The Discovery of Interstellar CO

     R. W. Wilson

   • Discoveries and Technical Developments in VLBI

     A. E. E. Rogers

   • Radio Astronomy - Past, Present, and Future

     S. Weinreb

   • Superconducting Detectors and Mixers: A Brief History

     J. Zmuidzinas

9. Session 9 Detection Theory & Techniques, Chair: Jim Moran

   • Full Sampling Using a Dense Hexagonal Array of Coherent Multi-Beam Detectors

     D. Henke, S. Claude, and J. D. Francesco

   • Towards the Intensity Interferometry at Terahertz Wavelengths

     H. Ezawa, H. Matsuo, K. Shibasaki, K. Iwai, M. Shimojo, N. Shinohara, M. Honma, and Y. Murata

   • Measuring the Brightness of Classical Noise Dominated Light at the Shot Noise Limit?

     R. Lieu, and T. W. B. Kibble

10. Session 10 Direct Detectors, Chair: Paul Grimes

    • Development of Background-Limited MKID Systems for Millimeter-Wave and Far-Infrared Observations

      J. Austermann, J. Beall, D. Becker, H.-M. Cho, M. Devlin, B. Dober, S. Duff, J. Gao, C. Groppi, G.C. Hilton, J. Hubmayr, K.D. Irwin, D. Li, P. Mauskopf, D.P. Pappas, L. Vale, J. V. Lanen, M.R. Vissers, Y. Wang;

    • Quasiparticle Effective Temperature in Superconducting Thin Films Illuminated at THz Frequencies

      T. Guruswamy, D. J. Goldie and S. Withington

    • A High-Mobility Tunable Antenna Coupled Intersubband Terahertz (TACIT) Detector

      N. Gautam, J. Kawamura, N. Chahat, B. Karasik, P. Focardi, S. Gulkis, L. Pfeiffer, and M. S. Sherwin

    • Tunable Hot-Carrier Photodetectors for Terahertz Frequency Operation

      A. G. U. Perera, Y.-F. Lao, L. H. Li, S. P. Khanna, and E. H. Linfield

    • Elastic Interferometers as Phononic Filters for Thermal Isolation in Low-Noise Transition Edge Sensors

      D. Osman, S. Withington, D. J. Goldie and D. M. Glowacka

    • Ultrasensitive Graphene Far-Infrared Power Detectors

      D. E. Prober, C. B. McKitterick, M. J. Rooks, B. S. Karasik, H. Vora and X. Du

11. Poster Session, Chair: Gregory Goltsman

    • On Specific Capacitance of SIS Junctions

      P. Y. Aghdam, H. M. Rashid, A. Pavolotsky, V. Desmaris, D. Meledin and V. Belitsky

    • Focal Plane Arrays for HAWC+, SOFIA's Upgraded High-Resolution Airborne Wideband Camera and Polarimeter

      D. J. Benford, C. Jhabvala, T. Miller, J. Staguhn, E. Sharp, E. Wollack, D. Fixsen, L. Sparr, C. D. Dowell, M. Runyan

    • Modal Optical Modelling of a Test System for Ultra-Low-Noise Transition Edge Sensors for Space Science

      J. Chen, S. Withington, C. N. Thomas, O. Quaranta

    • A Low-Background Test Facility for Spectral Response Measurements at 70 mK of Ultra-Sensitive TES Detectors

      G. de Lange, M. D. Audley, G. Keizer,W.-J. Vreeling

    • Non-Periodic Phase Gratings

      F. Defrance, M. Casaletti, J. Sarrazin, M. Wiedner, Y. Delorme, G. Gay, R. Lefevre

    • Status and Progress of Schottky Technology Development for SWI and ISMA

      V. Drakinskiy, P. Sobis, H. Zhao, A. Malko, T. Bryllert, and J. Stake

    • Development of Membrane Based Quasi-Optical HEB Mixers at 1.4 TH

      G. Gay, Y. Delorme, M. Wiedner, R. Lefèvre, F. Defrance, T. Vacelet, A. Féret, M. Ba-trung, F. Dauplay, L. Pelay and J.-M. Krieg

    • The Need of Compact Profiled Corrugated Horns at Longer mm-Waves (ALMA Band 1) and at Around 1 THz (Band 10)

      A. Gonzalez

    • Testing an Array of 350 GHz Drilled Smoothwall Horns Using a Vector Near-Field Beam Scanner

      P. K. Grimes, E. Tong, L. Zeng, J. Leech and G. Yassin

    • Fourfold Azimuthal Dependence of Terahertz Radiation from (100) Silicon

      Q. Guo, L. Chen, Dong-wen Zhang, and Jian-min Yuan

    • Optical Designs for a Multi-Beam 340 and 625/640 GHz Spaceborne Climate Research Instrument

      A. Hammar, A. Emrich, D. McCarthy, A. Murphy, N. Trappe and J. Stake

    • Investigating the Origin of Harmonics in a 230 GHz Local Oscillator

      A. Hector, B. N. Ellison, G. Yassin, B.-K. Tan, and J. Leech

    • Statistical Topics Concerning Radiometer Theory

      T. R. Hunter, R. Kimberk

    • Performance Evaluation of Phase-Locking for THz-QCL Using a HEB Mixer

      Y. Irimajiri, M. Kumagai, I. Morohashi, A. Kawakami, S. Nagano, N. Sekine, S. Ochiai, S. Tanaka, Y. Hanado, Y. Uzawa, and I. Hosako

    • Terahertz Spectra of Vitamins Studied by Terahertz Spectroscopy and Density Functional Theory

      L. Jiang, M. Li, and Y. F. Liu

    • A Cryogenic Millimeter Wavelength Test Facility

      G. Jones, B. R. Johnson, H. McCarrick, D. Flanigan, K. Bradford, A. Miller, M. Limon, B. Smiley, B. Kjellstrand, P. Mauskopf, G. Che, S. Bryan, and P. Day

    • Analysis of a Normal Metal Nano-HEB THz Array

      B. S. Karasik, C. B. McKitterick, T. J. Reck, and D. E. Prober

    • Fabrication of 3 THz Superconducting Hot Electron Bolometer Mixers

      A. Kawakami, Y. Irimajiri, Y. Uzawa, S. Tanaka, S. Ochiai, and I. Hosako

    • High Gap Nb-A1N-NbN SIS Junctions for Frequency Band 790-950 GHz

      A. Khudchenko, A. M. Baryshev, K. Rudakov, V. Koshelets, P. Dmitriev, R. Hesper, L. de Jong

    • Optical Design Study for Submillimeter Wave Instrument for the Jupiter Mission

      H. Kim, A. Murk, P. Hartogh, and SWI Team

    • Development of a Terahertz HEB Mixer-Amplifier With SiGe HBTs

      T. Kojima, Y. Fujii, S. Tatsuya, S. Yamamoto, and Y. Uzawa

    • Design of Superconducting On-Chip Frequency Multiplexers for a Low-Noise Multiband Receiver

      T. Kojima, M. Kroug, A. Gonzalez and Y. Uzawa

    • Development for a Wideband 100GHz SIS Mixer

      Y. Kozuki, H. Ishida, Y. Hasegawa, K. Kuroiwa, K. Kimura, K. Muraoka, H. Maezawa, T. Ohnishi, H. Ogawa, S. Asayama, T. Minamidani, T. Kojima, Y. Fujii, T. Noguchi, T. Nakajima, C. Kato, Y. Fujii, H. Yamamoto

    • High Current Density SIS Junctions Based on Nb/A1,A1N/Nb Tri-Layers

      M. Kroug, M. Ikeya, T. Kojima, and T. Noguchi

    • Development of an 8×8 CPW Microwave Kinetic Inductance Detectors (MKIDs) Array at 0.35 THz

      J. Li, J. P. Yang, S. Li, D. Liu, Z. H. Lin, S. C. Shi, S. Mima, N. Furukawa and C. Otani

    • The Performance of an Integrated Dual Polarization SIS Mixer at 350 GH

      K.-Y. Liu, T.-J. Chen, Y.-P. Chang, C.-T. Li, S.-C. Shi, and M.-J. Wang

    • Antenna-Coupled 30 THz Hot Electron Bolometer Mixers

      M. Shcherbatenko, Y. Lobanov, O. Benderov, A. Shurakov, A. Ignatov, N. Titova, M. Finkel, S. Maslennikov, N. Kaurova, B. M. Voronov, A. Rodin, T. M. Klapwijk, and G. N. Gol.tsman

    • Dual-Band SIS Receiver Design for Atmospheric Physics Research

      S. Mahieu, Y. Bortolotti, J. Y. Chenu, F. Cope, A. L. Fontana, D. Maier, A. Navarrini

    • Electronically Tuned Local Oscillators for the NOEMA Interferometer

      F. Mattiocco, O. Garnier, J.M. Danneel, M. Berton, D. Maier, A. Navarrini, J. Reverdy and P. Serres

    • Direct Integration of an SIS Mixer With a High-Impedance SiGe Low Noise Amplifier

      S. Montazeri, P. K. Grimes, C.-Y. E. Tong, W.-T. Wong and J. C. Bardin

    • Noise Measurements of the Low Tc MgB2 HEB Mixer at 1.6THz and 2.6THz

      E. Novoselov, S. B. S. Cherednichenko, H. Shibata and Y. Tokura

    • Metamaterial-Like Properties of the Distributed SIS Tunnel Junction

      H. Rashid, V. Desmaris, A. Pavolotsky and V. Belitsky

    • Measurements, Simulations, and Optimization of an ALMA Band 5 Vacuum Window Prototype

      A. Schröder, A. Murk, P. Yagoubovy and F. Patty

    • Engineering of Electron and Phonon Processes in HEB Sensors

      A. V. Sergeev, S. A. Vitkalov, and B. S. Karasik

    • Experimental Study of NbTiN Microstrip Lines

      W. Shan, Y. Sekimoto, and T. Noguchi

    • Performance of an HEB Direct Detector Utilizing a Microwave Reflection Readout Scheme

      A. Shurakov, S. Maslennikov, C. E. Tong and G. Gol'tsman

    • A 220 GHz Finline Mixer With Ultra-Wide Instantaneous Bandwidth

      J. Garrett, B.-K. Tan, F. Boussahay, C. Chaumontz and G. Yassin

    • Investigation of the Dynamic Range of Superconducting Nano-Bridge Switches

      B.-K. Tanz, G. Yassin, E. Ottoy and L. Kuzmin

    • Impact of Operating Conditions On Noise and Gain Bandwidth of NbN HEB Mixers

      I. Tretyakov, S. Maslennikov, A. Semenov, O. Safir, M. Finkel, S. Ryabchun, N. Kaurova, B. Voronov, G. Goltsman, and T. M. Klapwijk

    • An Investigation of the DC and IF Performance of Silicon-Membrane HEB Mixer Elements

      A. Trifonov, C. E. Tong, Y. Lobanov, N. Kaurova, R. Blundell, G. Gol'tsman

    • 20 Gigasample Per Second Analog-to-Digital Conversion for Ultra-Wideband Radio Astronomy

      J. Weintroub, R. Raffanti, and R. Primiani

    • SWARM: A Compact High Resolution Correlator and Wideband VLBI Phased Array Upgrade for SMA

      J. Weintroub and The SWARM Development Team

    • Ultrathin MgB2 Films for Hot Electron Bolometer Mixers Fabricated by HPCVD and Ion Milling

      M. A. Wolak, N. Acharya, D. P. Cunnane, B. S. Karasik, and X. X. Xi

    • Experimental Verification of the Fundamental Gaussian Beam Properties of Smooth-Walled Feedhorns

      L. Zeng, C. E. Tong and P. K. Grimes

    • A Wideband Edge-Mode Isolator for Cryogenic Operation

      L. Zeng, C. E. Tong, R. Blundell and R. S. Kimberk

    • Characterization of Superconducting Ti Transition Edge Sensors With Different Microbridge Length

      W. Zhang, J. Q. Zhong, W. Miao, Q. J. Yao, D. Liu, Z. Wang, S. C. Shi, T. J. Chen, L. H. Chang, M. J. Wang, D. Prele, F. Voisin, M. Piat and F. Pajot

    • The Stratospheric Observatory for Infrared Astronomy (SOFIA)

      J. E. Vaillancourt for the SOFIA Science Team

12. Participants

The National Radio Astronomy Observatory is a facility of the National Science Foundation
operated under cooperative agreement by Associated Universities, Inc.