THIRTEENTH INTERNATIONAL SYMPOSIUM

ON SPACE TERAHERTZ TECHNOLOGY

Tuesday - Thursday, March 26-28, 2002

Maxwell-Dworkin Building

Harvard University

Cambridge, Massachusetts

Organized by: Harvard-Smithsonian Center for Astrophysics

Day 1: TUESDAY, MARCH 26

Opening Session/Remarks Raymond Blundell

Session 1: SIS I Chair: Raymond Blundell

Fixed-Tuned Waveguide 0.6 THz SIS Mixer with Wide Band IF	A. Baryshev, E. Lauria, R. Hesper, T. Zijlstra, W. Wild	SRON NRAO Delft	1
Saturation by Noise and CW Signals in SIS Mixers	A.R. Kerr	NRAO	11
Quantum-limited Mixing in a Transformer-coupled SIS Resonator for the 600 GHz Frequency Band	C.E. Tong, R. Blundell, K.G. Megerian, J.A. Stern, H.G. LeDuc	CFA JPL	23
Design and Characterization of 225 – 370 GHz DSB and 250 – 360 GHz SSB Full Height Waveguide SIS Mixers	A. Navarrini, B. Lazareff, D. Billon-Pierron, I. Péron	IRAM	33

Session 2: HEB I Chair: Dan Prober

Detailed Characterization of Quasi-Optically Coupled Nb Hot Electron Bolometer Mixers in the 0.6 – 3 THz Range	W.F.M. Ganzevles, P. Yagoubov, W.J. Vreeling, J.R. Gao, P.A.J. de Korte, T.M. Klapwijk	Delft/SRON	41
A Hot Spot Model for HEB Mixers Including Andreev Reflection	H.F. Merkel	Chalmers	53
The sensitivity and IF bandwidth of waveguide NbN Hot Electron Bolometer Mixer on MgO buffer layers over crystalline quartz	D. Meledin, C.E. Tong, R. Blundell, N. Kaurova, K. Smirnov, B. Voronov, G. Golt’sman	CFA MSPU	65
Quantum Noise Contribution to the Receiver Noise Temperature of HEB THz Heterodyne Receivers	E. Kollberg, S. Yngvesson	Chalmers U Mass	73
A Broadband Terahertz Heterodyne Receiver with an NbN HEB Mixer	S. Cherednichenko, M. Kroug, P. Khosropanah, A. Adam, H. Merkel, E. Kollberg D. Loudkov, B. Voronov, G. Gol’tsman, H. Richter, H.-W. Hubers	Chalmers MSPU DLR	85

Session 3: Detectors Chair: Erik Kollberg

Recent Progress on Photon-Counting Superconducting Detectors for Submillimeter Astronomy	J. Teufel, T.R. Stevenson, W.-T. Hsieh, M.J. Li, C.M. Stahle, E. J. Wollack, D.E. Prober, R.J. Schoelkopf	Yale/ NASA Goddard	95
Spectral Sensitivity and Temporal Resolution of NbN Superconducting Single-Photon Detectors	A. Verevkin, J. Zhang, W. Slysz, R. Sobolewski, A. Lipatov, O. Okunev, G. Chulkova, A. Korneev, K. Smirnov, G.N. Gol’tsman, A. Semenov	U. Rochester MSPU DLR	105

Session 3: Detectors Continued Chair: Erik Kollberg

Kinetic Inductance THz Mixer for Space Applications	A.V. Sergeev, V.V. Mitin, B.S. Karasik, W.R. McGrath	Wayne JPL	113
Broadband Direct Detection Submillimeter Spectrometer with Multiplexed Superconducting Transition Edge Thermometer Bolometers	D.J. Benford, T.A. Ames, J.A. Chervenak, S.H. Moseley, R.A. Shafer, J.G. Staguhn, G.M. Voellmer, F. Pajot, C. Rioux, T.G. Phillips, B. Maffei, K.D. Irwin	NASA Goddard CNRS Caltech U. Wales NIST	117
Critical Temperature Dependence of Heterodyne Mixing in Superconducting Nb based Hot-Electron Bolometers	I. Siddiqi, D.E. Prober, B. Bumble, H.G. LeDuc	Yale JPL	127

Session 4: Systems Chair: Scott Paine

Terahertz Initiatives at the Antarctic Submillimeter Telescope and Remote Observatory (AST/RO)	A.A. Stark, A.P. Lane, C.L. Martin, R.A. Chamberlin, J. Kooi, C.K. Walker	SAO Caltech U. Arizona	133
SMART: The KOSMA Sub-Millimeter Array Receiver for Two frequencies	U.U. Graf, S. Heyminck, E.A. Michael, S. Stanko, C.E. Honingh, K, Jacobs, R. Schieder, J. Stutzki	KOSMA, Cologne	143
BLAST – A New Balloon-Borne Submillimeter Telescope	S. Dicker, P. Ade, J. Brock, J. Cung, E. Chapin, M. Devlin, M. Giffin, J. Gunderson, M. Halpern, P. Hargrave, D. Hughes, J. Klein, C. Mactavish, G. Marsden, P. Mauskopf, B. Netterfield, L. Olmi, M. Rex, D. Scott, G. Tucker, M. Truch, M. Viero	Cardiff Univ./ JPL/ Univ. Penn/ Univ. Miami/ INAOE/ Univ. Toronto/ Brown Univ./ Univ. B.C./ Univ. P.R.	153
Prospects for Terahertz Radio Astronomy from Northern Chile	R. Blundell, J.W. Barrett, H. Gibson, C. Gottleib, T.R. Hunter, R. Kimberk, S. Leiker, D. Marrone, D. Meledin, S. Paine, D.C. Papa, R.J. Plante, P. Riddle, M.J. Smith, T.K. Sridharan, C.E. Tong, R.W. Wilson, M.A. Diaz, L. Bronfman, J. May, A. Otarola, S.J.E. Radford	CFA U. Chile ESO NRAO	159

Day 2: WEDNESDAY, MARCH 27

Session 5: Sources I Chair: Antti Räisänen

1400 – 1900 GHz Membrane Based Schottky Diode Triplers	A. Maestrini, G. Chattopadhyay, E. Schlecht, D. Pukala, I. Mehdi	JPL	167
1500 GHz Tunable Source Using Cascaded Planar Frequency Doublers	N. Erickson, G. Narayanan, R. Grosslein, G. Chattopadhyay, A. Maestrini, E. Schlecht, I. Mehdi, S. Martin	U. Mass Amherst JPL	177
Harmonic Balance Optimization of Terahertz Schottky Diode Multipliers Using an Advanced Device Model	E. Schlecht, G. Chattopadhyay, A. Maestrini, D. Pukala, J. Gill, I. Mehdi	JPL	187
Millimeter- and Submillimeter-Wave Planar Varactor Sideband Generators	H. Xu, G.S. Schoenthal, R.M. Weikle, J.L. Hesler, T.W. Crowe	U. Virginia	197

Session 6: Signal Generation via Optical Mixing Chair: Jonas Zmuidzinas

A Photonic Local Oscillator for an SIS Mixer in the 100 GHz Band	T. Noguchi, A. Ueda, H. Iwashita, Y. Sekimoto, M. Ishiguro, T. Ishibashi, H. Ito, T. Nagatsuma	Nobeyama NTT	205
Millimeter- and Submillimeter-Wave Electrodynamic Properties of Polymer Electro-Optic Materials	M. Lee, O. Mitrofanov, H.E. Katz	Lucent	213
THz Field Generation and Manipulation by Coherent Control Over Phonon-Polaritons	T. Feurer, J.C. Vaughan, N.S. Stoyanov, D.W. Ward, K.A. Nelson	MIT	215
Novel Tunable Source for Generation of THz Radiation	L. Maleki, H. Javadi, V. Ilchenko	JPL	219
Generation of Millimetre and Sub-Millimetre Waves by Photomixing in a 1.55 µm Wavelength Photodiode	P.G. Huggard, B.N. Ellison, P. Shen, N.J. Gomes, P.A. Davies, W.P. Shillue, A. Vaccari, J.M. Payne	Rutherford U. of Kent NRAO	221

Session 7: HEB II Chair : Jon Kawamura

Performance of Terahertz Heterodyne Receiver with a Superconducting Hot-Electron Mixer	A.D. Semenov, H.-W. Hübers, H. Richter, M. Birk, M. Krocka, U. Mair, K. Smirnov, G.N. Gol’tsman, B.M. Voronov	DLR MSPU	229
Noise Temperature for Nb DHEB Mixer Receiver for Far-Infrared Spectroscopy	E. Gerecht, C.D. Reintsema, E.N. Grossman, A.L. Betz, R.T. Boreiko	NIST Colorado	235
Tantalum Hot-Electron Bolometers for Low-Noise Heterodyne Receivers	A. Skalare, W.R. McGrath, B. Bumble, H.G. LeDuc	JPL	245
Improved Equivalent Circuit for Hot Electron Bolometer Mixers Fed by Twin Slots	P. Focardi, A. Neto, W.R. McGrath, B. Bumble, H.G. LeDuc	JPL FEL-TNO JPL	249
Gain bandwidth of Photon-Cooled HEB Mixer made of NbN Thin Film with MgO Buffer Layer on Si	Y.B. Vachtomin, M.I. Finkel, S.V. Antipov, B.M. Voronov, K.V. Sminov, N.S. Kaurova, V.N. Drakinski, G.N. Gol’tsman	MSPU	259

Session 8: Interactive Forum (held in Phillips Auditorium)

Quasi-Optical Beam Waveguide Analysis Using Frame Based Gaussian Beam Expansion	T. Bondo, S.B. Sørensen	TICRA	271
A Superconductive Parallel Junction Array Mixer for Very Wide Band Heterodyne Submillimeter-Wave Spectrometry	F. Boussaha, Y. Delorme, M. Salez, M.H. Chung, F. Dauplay, B. Lecomte, J.G. Caputo, V. Thevenet	(Observatoire de Paris/Taeduk Observatory, Korea/INSA Rouen)	277
WaFIRS, A Waveguide Far-IR Spectrometer: Enabling Space-Borne Spectroscopy of High-z Galaxies in the Far-IR and Submm	C.M. Bradford, J.J. Bock, M. Dragovan, L. Earle, J. Glenn, B. Naylor, H. Nguyen, J. Zmuidzinas	(CalTech/JPL/ U Colorado)	285

Session 8: Interactive Forum Continued (held in Phillips Auditorium)

Superconducting Hot Electron Bolometers on Freestanding Silicon Nitride Membrane Strips Using Flip-Chip Mounting	M. Brandt, J. Stodolka, T. Tils, C.E. Honingh, K. Jacobs		KOSMA, Cologne	295
A Fast, Very Sensitive Calorimetric Power meter for Millimeter to Submillimeter Wavelenghts	N. Erickson		Erickson Instruments	301
Feasibility Study for the Focalisation of the New 40m Radiotelescope of Centro Astronómic de Yebes	E. García, L. de Haro, J.A. López Fernanádez, F. Tercero, B. Galocha, J.L. Besada		U Politecnica/ Centro Astronómico, Spain	309
NbN Film Development for Phonon-Cooled HEB Devices	E. Gerecht, A.K. Bhupathiraju, E.N. Grossman, J. Nicholson, F. Rodriguez-Morales, D. Gu, K.S. Yngvesson		NIST U Mass Amherst	319
A Dual Reflector Feed System for a Sub-MM Hologram CATR	J. Häkli, T. Koskinen, J. Ala-Laurinaho, J. Säily, A. Lönnqvist, J. Mallat, J. Tuovinen, A.V. Räisänen		HUT, Finland	327
Mixer Development for HIFI Band 2 (640 – 800 GHz)		C.E. Honingh, M. Justen, R. Teipen, T. Tils, K. Jacobs	KOSMA, Cologne	337
The HIFI Focal Plane Unit		B.D. Jackson, K.J. Wildeman, N.D. Whyorn	SRON	339
An Interferometric Microwave Comb Generator		R. Kimberk, C.E. Tong, H. Gibson, R.W. Wilson, R. Blundell, S. Paine, T.R. Hunter	SAO	349
Development of the HIFI Band 3 and 4 Mixer Units	G. de Lange, B.D. Jackson, M. Eggens, H. Golstein, W.M. Laauwen, L. de Jong, S. Kikken, C. Pieters, H. Smit, D. Van Nguyen		SRON	359
DC and IF Bandwidth Measurements of Superconducting Diffusion-Cooled Hot Electron Bolometer Mixers based on Nb/Au Bilayer	X. Lefoul, P. Yagoubov, M. Hajenius, W.J. Vreeling, W.F.M. Ganzevles, J.R. Gao, P.A.J. de Korte, T.M. Klapwijk		Delft/SRON	369

Session 8: Interactive Forum Continued (held in Phillips Auditorium)

Broadband Fourier transform Spectrometer (FTS) Measurements of Spiral and Double-Slot Planar Antennas at Terahertz Frequencies	D. Loudkov, P. Khosropanah, S. Cherednichenko, A. Adam, H. Merkel, E. Kollberg, G. Gol’tsman		MSPU Chalmers MSPU	373
Progress in SIS Device Fabrication for HIFI Mixer Band 2 at KOSMA	P. Pütz, S. Glenz, C.E. Honingh, K. Jacobs		KOSMA, Cologne	383
Low Noise Cryogenic IF Amplifiers for Super Heterodyne Radioastronomy Receivers	C. Risacher, V. Belitsky		Chalmers	391
Integrated Niobium Thin Film Air Bridges as Variable Capacitors for Superconducting GHz Eletronic Circuits	M. Schicke, K.-F. Schuster		IRAM	401
Simulation of the Performance of a 5-Junction Array for 780-950GHz	S.C. Shi, M.J. Wang, T. Noguchi		PMO ASIAA Nobeyama	405
A Superconducting Spectrometer with Phase-Locked Josephson Oscillator		S.V. Shitov, V.P. Koshelets, P.N. Dmitriev, L.V. Filippenko, An. B. Ermakov, V.V. Khodos, V.L. Vaks	IREE/ SRON IPM RAS, Russia	411
Automatic Tuning of SMART, KOSMA’s 490/810 GHz Array Receiver		S. Stanko, U.U. Graf, S. Heyminck	KOSMA, Cologne	421
Optical Modulation Spectrometer: A Concept Study		V. Tolls, R. Schieder	SAO Cologne	431
Design and Analysis of a Waveguide NbN-based SIS Mixer using a Tuning Circuit with Two Half-Wavelength Distributed Junctions for the 900-GHz Band		Y. Uzawa, M. Takeda, A. Kawakami, Z. Wang	CRL	435
Performance Characterization of a 600-700 GHz SIS Mixer		M.J. Wang, C.C. Chin, W.L. Shan, W. Zhang, H.W. Cheng, T. Noguchi, S.C. Shi	ASIAA/ Herzberg/PMO/ Nobeyama	445

Session 8: Interactive Forum Continued (held in Phillips Auditorium)

A Comparison of Power Measurements from 100 GHz to 600 GHz	Q. Xiao, Y. Duan, J.L. Hesler	U. of Virginia	453
Progress on TREND - A Low Noise Receiver User Instrument at 1.25 THz to 1.5 THz for AST/RO at the South Pole	K.S. Yngvesson, J. Nicholson, Y. Zhuang, X. Zhao, D. Gu, R. Zannoni, E. Gerecht, M. Coulombe, J. Dickinson, T. Goyette, J. Waldman, C.K. Walker, A. Stark, A. Lane	U Mass Amherst NIST U Mass Lowell U of Arizona SAO	461
Detection and Interpretation of Bistability Effects in NbN HEB Devices	Y. Zhuang, K.S. Yngvesson	U Mass Amherst	463

Day 3: THURSDAY, MARCH 28

Session 9: Sources II Chair: Neal Erickson

Superconducting Phase-Locked Local Oscillator for SubMM Integrated Receiver	V.P. Koshelets, P.N. Dmitriev, A.B. Ermakov, A.S. Sobolev, M.Yu. Torgashin, V.V. Khodos, V.L. Vaks, P.R. Wesselius, C. Mahaini, J. Mygind	IREE Novgorod SRON TU Denmark	473
On-Chip Detection of Radiation Power from Flux-Flow Oscillators with Epitaxial and High-Jc NbN/AlN/NbN Junctions	S. Kohjiro, Z. Wang, S.V. Shitov, S. Miki, A. Kawakami, A. Shoji	AIST/CRL/IREE	483
Development of Backward Wave Oscillators for Terahertz Applications	L. Ives, J. Neilson, M. Caplan, N. Chubun, C. Kory, M. Read	Calabazas Creek	493
Novel Heterostructure Device for THz Power Generation	Z.S. Gribnikov, N.Z. Vagidov, H. Eisele, V.V. Mitin, G.I. Haddad	Wayne/Michigan University	503

Session 10: Circuits & Optics Chair: Urs Graf

A Novel Full Waveguide Band Orthomode Transducer	G. Narayanan, N.R. Erickson	U Mass Amherst	505
Phase and Amplitude Antenna Measurements on an SIS Mixer Fitted with a Double Slot Antenna for ALMA Band 9	M. Carter, A. Baryshev, R. Hesper, S.J. Wijholds, W. Jellema, T. Zijlstra	IRAM NOVA SRON Delft	515
Far-Infrared Optics Design & Verification Phase II	G. Yassin, S. Withington, C. O’Sullivan, J.A. Murphy, W. Jellema, P. Wesselius, T.P. Peacocke, B. Leone	Cambridge, UK N. Univ. Ireland SRON Royal Obeserv. ESA	525
On the Design of Sub-MM Wave Amplitude Holograms for CATR	T. Koskinen, J. Ala-Laurinaho, J. Säily, J. Häkli, A. Lönnqvist, J. Mallat, J. Tuovinen, A.V. Räisänen	HUT, Finland	537
A Holographic Measurement System for the SMA Antennas at 680 GHz	T.K. Sridharan, C.E. Tong, M. Saito, N. A. Patel, R. Blundell	CFA	545

Session 11: SIS II Chair: Tony Stark

Use of Subharmonically Pumped SIS Mixer with High Harmonics Number for Phase and Amplitude Antenna Measurements	A. Baryshev, M. Carter, R. Hesper, S.J. Wijnholds, W. Jellema, T. Zijlstra	NOVA/IRAM SRON Delft	551
Low Noise SIS Mixer with Nb Tuning Circuit for the Frequency above 1 THz	A. Karpov, J. Zmuidzinas, F. Rice, D. Miller, J.A. Stern, B. Bumble, H.G. LeDuc	Caltech JPL	559
THz SIS Mixer Development for HIFI	B.D. Jackson, G. de Lange, W.M. Laauwen, L. de Jong, T. Zijlstra, N.N. Iosad, T.M. Klapwijk	SRON Delft	561

Paper from 12^th THz Symposium

Analysis of Superconducting Coplanar Waveguides for SIS Mixer Circuits

P. Kittara, G. Yassin, S. Withington

U. Cambridge, U.K.

571

Authors and Registered Participants 581