Content of the Proceedings of 13th THz Symposium

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

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