JOURNAL OF LOW TEMPERATURE PHYSICS

Vol. 151, Nos.1/2

April 2008

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         Proceedings of the 12th International workshop on
Low Temperature Detectors (LTD12)
Paris, July 22 to 27, 2007


CONTENTS – Part I


Editorial.........................................................................................................................................................1


ARTICLES

SESSION A : TUTORIALS

A01
Physical Principles of Low Temperature Detectors:
Ultimate Performance Limits and Current Detector Capabilities......................................................................5
        C. Enss and D. McCammon

SESSION B : GENERAL DETECTOR PHYSICS

B01
Superconducting Detectors and the Casimir Effect .......................................................................................25
        D. Brandt,  G.W. Fraser,  D.J. Raine,  C.  Binns
 
B02
HERSCHEL - PACS bolometer arrays for submillimeter  ground-based telescopes.....................................32
        Vincent Revéret , Philippe André , Michel Talvard , Louis R. Rodriguez , Olivier Boulade ,
         Eric Doumayrou , Pascal Gallais , Benoit Horeau , Jean Le Pennec , Michel Lortholary ,
        Jérome Martignac , Patrick Agnèse


B03
Phonon-Mediated Distributed Transition-Edge-Sensor X-ray Detector with Deep Trenches..........................40
        Steven W. Leman , Paul L. Brink  , Blas Cabrera , Astrid Tomada, Betty Young,
        Dennis S. Martınez-Galarce


B05
Design of an optical absorption cavity for titanium transition edge sensors......................................................46
        R. M. T. Damayanthi, D. Fukuda, H. Takahahsi, M. Ohkubo and M. Ohno
 
B06
Phonon noise in thin metal films in an advanced energy down-conversion stage............................................51
        A.G.Kozorezov, J.K.Wigmore, D.Martin, P.Verhoeve, A.Peacock

B07
Direct Numerical Simulations for Non-equilibrium Superconducting Dynamics
    at theTransition Edge; Simulation for MgB2 Neutron Detectors..................................................................58
        M. Machida , T.Kano , T.Koyama , M.Kato , and T. Ishida

B09
Effect of thin ballistic membranes on transition-edge sensor performance.........................................................64
        J. Maasilta, T. Kühn
 
B10
Progress in density of states measurements of Al lightly doped with Mn...........................................................70
        G.C. O’Neil , D.R. Schmidt , N.A. Miller , J.N. Ullom , K.D. Iwrin , A. Williams ,
         G.B. Arnold , S.T. Ruggiero

 
B12
Technique for Measuring the Conductance of Silicon-Nitride Membranes using Johnson Noise Thermometry...76
        K. Rostem , D. Glowacka , D. J. Goldie , S. Withington
 
SESSION C : TES DETECTORS : PHYSICS, CHARACTERIZATION AND PERFORMANCE

C01
Introduction to TES Physics....................................................................................................................................82
        B. Cabrera

C02
Comparative study of TiAu-based TES microcalorimeters with different geometries............................................94
        H.F.C. Hoevers , M.P. Bruijn , B.P.F. Dirks , L. Gottardi , P.A.J. de Korte ,
        J. van der Kuur , A.M. Popescu , M.L. Ridder , Y. Takei and D.H.J. Takken

C03
High speed photon number resolving detector with titanium transition edge sensor.............................................100
        D. Fukuda, G. Fujii, A. Yoshizawa, H. Tsuchida, R.M.T. Damayanthi,
         H. Takahashi, S. Inoue, M. Ohkubo

C04
Characterisation of a TES-based X-ray microcalorimeter in the energy range from 150 to 1800 eV
 using an Adiabatic Demagnetisation Refrigerator ................................................................................................106
        L. Gottardi  , Y. Takei  , J. van der Kuur  , P.A.J. de Korte  , H.F.C.Hoevers,
         D. Boersma  , M. Bruijn  , W. Mels  , M. L. Ridder  , D. Takken  , H. van Weers

C05
Electrical properties of background–limited membrane–isolation transition–edge sensing
 bolometers for far–IR/submillimeter direct–detection spectroscopy......................................................................112
        M. Kenyon,  P.K. Day,  C.M. Bradford,  J.J. Bock,  H.G. Leduc

C06
Reducing Excess Noise in Au/Ti Transition-Edge Sensors...................................................................................119
        K. M. Kinnunen , A.K. Nuottajarvi , J. Leppaniemi , I.J. Maasilta

C07
Energy Collection Efficiency of Tungsten Transition-Edge Sensors in the Near-Infrared.....................................125
        A. E. Lita , A. J. Miller, S. Nam

C08
Effect of on-chip magnetic shielding for TES microcalorimeters............................................................................131
        Y. Ishisaki,  H. Kurabayashi,  A. Hoshino,  T. Ohashi,  T. Yoshino, T. Hagihara  K. Mitsuda, K. Tanaka

C09
Electrical and Thermal Characterization of Membrane-Isolated, Antenna-Coupled,
    TES Bolometers for the SPIDER Experiment.....................................................................................................138
        J.A. Bonetti , P. Day, M.Kenyon , A. Turner , H.G. LeDuc, C.L. Kuo, J.J. Bock

C10
A transition-edge sensor with two excess noise mechanisms....................................................................................144
        K.M. Kinnunen , A.K. Nuottajärvi and I.J. Maasilta

C11
Synchrotron beam test of a position-sensitive small-pixel Ir-TES array...................................................................150
        Fumiakira Mori , Yasuhiro Minamikawa , R.M.Thushara Damayanthi ,
         Steven Leman , Nobuyuki Zen , Masashi Ohno , Hiroyuki Takahashi ,
         Hidenori Toyokawa , Hajime Tanida , Tomoya Uruga

C12
Simulation of Transient Response of Ir-TES for Position-Sensitive TES with Waveform Domain Multiplexing.....155
        Y. Minamikawa, H. Sato , F.Mori , R.M.T. Dayamanthi , H.Takahashi , M. Ohno

C13
Characterization of a high-performance Ti/Au TES microcalorimeter with a central Cu absorber...........................161
        Y. Takei, L. Gottardi, H.F.C. Hoevers, P.A.J. de Korte, J. van der Kuur, M.L. Ridder, M.P. Bruijn

C15
Characterization of Iridium thin films for TES microcalorimeters...........................................................................167
        D. F. Bogorin and M. Galeazzi

C16
Sensitivity Measurements of a Transition-Edge Hot-Electron Microbolometer for Millimeter-wave
 Astrophysical Observations.....................................................................................................................................173
        E.M. Barrentine, P.T. Timbie, T.R. Stevenson, S. Ali, J.A. Chervenak, E. Wollack ,
          S.H. Moseley , C.A. Allen , W.T. Hseih , T.M. Miller , D.J. Benford ,
A.D. Brown

C17
Accurate thermal conductance and impedance measurements of transition edge sensors........................................180
        M. A. Lindeman , K. A. Barger , D. E. Brandl , S. G. Crowder , L. Rocks , D. McCammon

C18
The noise and energy resolution of the Ti/Au bilayer X-ray TES calorimeter with an Au absorber........................185
        T. Yoshino,  K. Mukai,  Y. Ezoe,  N.Y. Yamasaki,  K. Mitsuda,  H. Kurabayashi,
       Y. Ishisaki, T. Takano,  R. Maeda


C19
The superconducting transition in 4-D: temperature , current , resistance and heat capacity....................................190
        M. A. Lindeman , K. A. Barger , D. E. Brandl , S. G. Crowder , L. Rocks ,
         D. McCammon , H. F. C. Hoevers

C20
Characterizing the superconducting-to-normal transition in Mo/Au transition-edge sensor bilayers........................195
        S.J. Smith , S.R. Bandler , A.-D. Brown , J.A. Chervenak , E. Figueroa-Feliciano, F. Finkbeiner,
        N. Iyomoto , R.L. Kelley , C.A. Kilbourne , F.S. Porter and J.E. Sadleir


C22
Fabrication of robust superconducting granular aluminium/palladium bilayer microbolometers
   with sub-nanosecond response.............................................................................................................................201
        Thomas E. Wilson


SESSION D : TES DETECTORS : DESIGN AND FABRICATION

D01
Anomalous voltage noise at the superconducting transition of Tin films................................................................206
        Hengshong Zhang, Fulin Zuo , Massimiliano Galeazzi

D02
Detector Development for the Next Phases of the Cryogenic Dark Matter Search :
  Results from 1 inch Ge and Si Detectors..............................................................................................................211
        C.N. Bailey , Z. Ahmed , D.S. Akerib , P.L. Brink , B. Cabrera , J.P. Castle ,
         J. Cooley , M.E. Danowski , M.R. Dragowsky , J. Filippini , D.R. Grant ,
         R. Hennings-Yeomans, N. Mirabolfathi , L. Novak , R.W. Ogburn , M. Pyle ,
         J. Ruderman , B. Sadoulet , R.W. Schnee , D.N. Seitz , B. Serfass ,
         K.M. Sundqvist , A. Tomada, B.A. Young

D04
Properties of Tungsten Thin Films Produced with the RF-Sputtering Technique..................................................216
        S. Roth  C. Ciemniak  C. Coppi  F. v. Feilitzsch  A. Gutlein  C. Isaila
         J.-C. Lanfranchi  S. Pfister  W. Potzel  W. Westphal

D05
Various optimizations of x-ray TES arrays............................................................................................................223
        C.A. Kilbourne , S.R. Bandler , A.-D. Brown , J.A. Chervenak , E. Figueroa-Feliciano ,
         F. Finkbeiner , N. Iyomoto , R.L. Kelley , F.S. Porter and S.J. Smith


D06
Development of high count rate TES microcalorimeters........................................................................................229
        Masashi Ohno , Fumiakira Mori , Yasuhiro Minamikawa , R.M.Thushara Damayanthi ,
         Hiroyuki Takahashi , Hiromi Sato and Hidenori Toyokawa


D07
Ir TES electron-Phonon thermal conductance and single photon detection............................................................234
        D. Bagliani , F. Gatti , M. Ribeiro Gomes , L. Parodi , L. Ferrari and R. Valle


D08
Mo/Au bilayers deposited by sputtering at Room Temperature for Transition Edge Sensors fabrication................239
        R. Gonzalez-Arrabal , A. Camón , M. Parra-BorderÌas , L. Fabrega , J. Anguita,
         J. Sesé and F. Briones


D10
Design and Fabrication of Absorber Coupled TES Microbolometers on Continuous Silicon-Nitride Windows....245
        Clarence L. Chang  , John E. Carlstrom  , Aaron Datesman, Stephan S. Meyer  ,
        Valentyn Novosad  , Volodymryr G. Yefremenko, Tom Crawford,

        Tom Downes  , Jeff McMahon  , Kathryn Miknaitis  , Joaquin D. Vieira

D12
A fabrication process for microstrip-coupled Superconducting Transition Edge Sensors giving
 highly reproducible device characteristics.............................................................................................................249
        D. M. Glowacka , D. J. Goldie , S. Withington , M. Crane , V. Tsaneva ,
         M. D. Audley , and A. Bunting

D13
Materials Development for Auxiliary Components for Large Compact Mo/Au TES Arrays.................................255
        J. A. Chervenak , F. M. Finkbeiner , S. R. Bandler , R. Brekosky , A. D. Brown ,
         N. Iyomoto , R. L. Kelley , C. A. Kilbourne , F. S. Porter , J. Sadleir and S. Smith


D14
Fabrication of Au/Ti TESs for optical photon counting..........................................................................................261
        C. Portesi , E. Taralli , R. Rocci , M. Rajteri and E. Monticone

D16
Design and Fabrication Highlights Enabling a 2 mm , 128 Element Bolometer Array for GISMO........................266
        C.A. Allen, D.J. Benford, T. M. Miller, S.H. Moseley, J.G.Staguhn and E.J. Wollack

D17
Study of microcalorimeters for astrophysics applications........................................................................................271
        Lorenza Ferrari , Flavio Gatti , Daniele Pergolesi , Maria Ribeiro Gomes ,
        Daniela Bagliani , Riccardo Valle , Simeone Dussoni , Luigi Piro , Luca Colasanti ,
        Claudio Macculi , Marco Barbera and Emanuele Perinati



SESSION E : STJ DETECTORS

E01
Superconducting Tunnel Junction Photon Detectors: Theory and Applications......................................................277
        S. Friedrich

E02
Bias Voltage Dependence of Quasiparticle Recombination in STJ Detectors with Killed Electrode.......................287
        V.A. Andrianov , L.V. Filippenko , V. P. Gorkov and V.P. Koshelets

E03
A Superconducting  Cold-Electron Bolometer with SIS¥ and Josephson Tunnel Junctions.....................................292
        Leonid Kuzmin

E04
Direct position resolution measurement with DROIDs at optical wavelengths..........................................................298
        R.A. Hijmering , P. Verhoeve , D.D.E. Martin , I. Jerjen , A.G.Kozorezov , R.Venn

E05
Realization of submillimeter-wave imaging array with superconducting direct detectors..........................................304
        H. Matsuo , Y. Mori , Y. Murakoshi , S. Ariyoshi , H. Ezawa , Y. Hibi ,
         J. Kobayashi , H. Nagata , M. Nakahashi , C. Otani

E06
Complete analysis of STJ detector performance via absorption of phonon Pulses..................................................310
        M Stokes , K. Wigmore , A. Kozorezov , P Verhoeve

E07
Anomaly in fabrication processes for large-scale array detectors of superconducting tunnel junctions.....................316
        M. Ukibe , Y. Chen , Y. Shimizugawa , Y. Kobayashi , A. Kurokawa , M. Ohkubo

E08
Determination of the photon impact position within a DROID.................................................................................322
        I. Jerjen , R. A. Hijmering , P. Verhoeve, D.D.E. Martin, A.G. Kozorezov, R.Venn


E09
Quasiparticle Edge Losses in Double STJs Strip X-rays Detectors...........................................................................327
        V.A. Andrianov , V.P. Gorkov

E10
Position Resolution in DROIDs.................................................................................................................................333




SESSION F : METALLIC MAGNETIC CALORIMETERS

F01
Microstructured magnetic calorimeter with meander-shaped pickup coil ..................................................................337
        A. Burck,  S. Kempf,  S. Schäfer,  H. Rotzinger,  M. Rodrigues,  T. Wolf,
          L. Gastaldo,  A. Fleischmann,  C. Enss

F04
Development of low temperature SQUID gradiometer array for metallic magnetic microcalorimeters.....................345
        K. Sato , A. Tsuchiya , T. Oshima  , N. Y. Yamasaki  , T. Morooka

F06
Performance of Micro-fabricated Magnetic Calorimeters Arrays for X-ray Spectroscopy.....................................351
        H. Rotzinger  , J. Adams  , S.R. Bandler  , J. Beyer  , H. Eguchi, E. Figueroa-Feliciano,
        W. Hsieh  , G.M. Seidel  , T. Stevenson


F08
Fabrication of Metallic Magnetic Calorimeter X-ray Detector Arrays..................................................................357
        W-T. Hsieh ,J. A. Adams , S. R. Bandler , J. Beyer , K. L. Denis , H. Eguchi ,
         E. Figueroa-Feliciano , H. Rotzinger , G. H. Schneider , G. M. Seidel ,
         T. R. Stevenson , D. E. Travers

F09
Design Fabrication , and Multiplexing of Magnetic Calorimeter X-ray Detectors with
 High-Efficiency SQUID Readout....................................................................................................................363
        Rubina Sultan, B. L. Zink , K. D. Irwin , G. C. Hilton , J. N. Ullom  , L. R. Vale

F11
Characterization of a miniature thin-film SQUID susceptometer for metallic magnetic microcalorimetry.........369
        S.T.P. Boyd , R. Cantor , V.Kotsubo , P. Blumenfeld , and J.A. Hall



SESSION G : THERMISTOR DECTECTORS

G01
Ion-implanted Silicon X-Ray Calorimeters: Present and Future.......................................................................375
        R.L. Kelley , C.A. Allen , M. Galeazzi , C.A. Kilbourne , D. McCammon,
         F.S. Porter , A.E. Szymkowiak

G02
X-Ray micro-calorimeter based on Si thermistors for X-ray Astronomy: Design and first measurements........381
        A.Aliane , F.De Moro , C.Pigot , P.Agnese , X.de la Broïse , A.Gasse ,  X-F.Navick ,
          M. Karolak, H.Ribot, J-L.Sauvageot, V.Szeflinski, Y.Gobil, D.Renaud, P.Rivallin, H.Ge
offray

G03
A fully planar approach to the construction of X-Ray microcalorimeters with doped Germanium sensors.......387
G. Chianetta , C. Arnone , M. Barbera , J. Beeman , A. Collura , G. Lullo ,
E. Perinati , E. Silver



SESSION H : STUDIES ON DETECTOR ABSORBERS

H01
Application of the Neganov-Luke Effect for Scintillation Light Detection..................................................394
 J.-C. Lanfranchi  , A. Pahlke, S. Pfister, W. Potzel, S. Roth,
W. Westphal, F. Wiest

H02
Performance of TES X-ray Microcalorimeters with a Novel Absorber Design..............................................400
        S.R. Bandler  , R.P. Brekosky  , A.-D. Brown  , J.A. Chervenak  , E. Figueroa-Feliciano ,
         F.M. Finkbeiner, N. Iyomoto, R.L. Kelley, C.A. Kilbourne,
F.S. Porter, J. Sadleir, S.J. Smith

H03
Modeling of TES X-ray Microcalorimeters with a Novel Absorber Design....................................................406
        N. Iyomoto , S.R. Bandler , R.P. Brekosky , A.-D. Brown , J.A. Chervenak , E. Figueroa-Feliciano ,
         F.M. Finkbeiner , R.L. Kelley , C.A. Kilbourne ,
M.A. Lindeman , F.S. Porter ,
         T. Saab , J.E. Sadleir , S.J. Smith


H04
Absorber Materials for Transition-Edge Sensor X-ray Microcalorimeters.......................................................413
        A-D. Brown , S. R. Bandler , R. Brekosky , J. A. Chervenak , E. Figueroa-Feliciano,
         F. Finkbeiner, N. Iyomoto, R.L. Kelley, C.A. Kilbourne, F.S. Porter,  S. Smith,
         T. Saab, J. Sadleir


H05
Automated Hybridization of X-ray Absorber Elements A Path to Large Format
 Microcalorimeter Arrays...............................................................................................................................418
        Samuel J. Moseley , Christine A. Allen , Nicholas Costin , Richard Kelley ,
        Caroline Kilbourne , Timothy Miller


H06
Studies of Thermal Diffusion in Planar Absorber Designs for the Micro-X Rocket...................................... 424
        E. Figueroa-Feliciano  , T. Saab  , P. M. Rivera-Ortiz  , S. R. Bandler  ,
         N. Iyomoto , R. L. Kelley  , C. A. Kilbourne  , F. S. Porter  , S. J. Smith

H07
A high energy resolution gamma-ray TES microcalorimeter with fast response time...................................430
        T. Oshima  , Y. Yamakawa  , H. Kurabayashi  , A. Hoshino  , Y. Ishisaki  ,
         T. Ohashi , K. Mitsuda  , K. Tanaka

H08
Properties of Superconducting Rhenium as an Absorber for Magnetic Calorimeters.....................................436
        J.-P. Porst  , C. Höhn  , D. Haug  , R. Weldle  , G.M. Seidel  , L. Gastaldo  ,
         A. Fleischmann, C. Enss

H11
Detectors of the Cryogenic Dark Matter Search: Charge Transport and Phonon Emission
 in Ge <100> Crystals at 40 mK................................................................................................................. 443
        K.M. Sundqvist and B. Sadoulet




SESSION J : INSTRUMENTAL DESIGN

J01
My Bolometer is running a Fever , Or why very low noise performances requires global design
 of the apparatus................... ......................................................................................................................448
        D. Yvon, J. Panh, J. Landé, P. Eng, N. Briand, G. Guyot, R. Pons  ,
         J. Narbonne, D. Brienza, P. DeBernardis, S. Masi

J03
A Multi-band Dual-Polarized Antenna-coupled TES Bolometer.................................................................459
        R. O’Brient , P. A. R. Adeb , K. Arnold , G. Engargiola , W. Holzapfel , A. T. Lee , M. J. Myers ,
         X. F. Meng , E. Quealy , P. L. Richards , H. Spieler , H. T. Tran


J06
Antenna-coupled bolometer arrays for measurement of the Cosmic Microwave Background polarization ...464
        M. J. Myers  , K. Arnold  , P. Ade  , G. Engargiol   , W. Holzapfel  , A. T. Lee  ,
        X. Meng  , R. O’Brient  , P. L. Richards  , H. Spieler  , H. T. Tran

J07
Cosmic Microwave Background polarization detector with high efficiency , broad bandwidth ,
 and highly symmetric coupling to transition edge sensor bolometers..............................................................471
        T. Stevenson , D. Benford , C. Bennett , N. Cao , D. Chuss , K. Denis , W. Hsieh , A. Kogut ,
         S. Moseley , J. Panek , G. Schneider , D. Travers , K. U-Yen ,
G. Voellmer , E. Wollack

J08
Distributed Antenna-coupled TES for FIR detector arrays .............................................................................477
        P. Day  , H.G. Leduc  , C.D. Dowell  , R.A. Lee  , A.Turner  , J. Zmuidzinas

J09
Indium Hybridization of Large Format TES Bolometer Arrays to Readout Multiplexers
 for Far-Infrared Astronomy.............................................................................................................................483
        Timothy M. Miller , Nick Costen , Christine Allen

J10
Superconducting Transition-Edge Sensor Bolometers with Integrated Electron-tunneling Refrigerators.........489
        R. F. Silverberg  , D. J. Benford  , T. Chen  , J. Chervenak  , F. M. Finkbeiner  ,
        N. A. Miller  , D. Schmidt  , J. N. Ullom


J11
Compact radiation shield for a superconducting array molecule detector........................................................495
        Shigetomo Shiki , Masahiro Ukibe , Yutaka Shimizugawa , Ryutaro Maeda , Masataka Okubo

J12
Advances in fabrication of TES µ-calorimeter arrays and associated filter structures
 for AC-biased read out....................................................................................................................................500
        P. Bruijn , M.L. Ridder , L. Gottardi , H.F.C. Hoevers , P.A.J. de Korte , J. van der Kuur

J13
Heat Sinking and Crosstalk for Large , Close-packed Arrays of Microcalorimeters ......................................506
        N. Iyomoto , S.R. Bandler , R.P. Brekosky , A.-D. Brown , J.A. Chervenak ,
         E. Figueroa-Feliciano , F.M. Finkbeiner , R.L. Kelley , C.A. Kilbourne ,
         F.S. Porter , J.E. Sadleir , S.J. Smith
 
J14
Large bolometer arrays with superconducting NbSi sensors for future space experiments..............................513
        F. Pajot, Y. Atik, C. Evesque, S. Lefranc, B. Leriche, J-P. Torre, B. Bélier  , N. Marsot ,
         L. Dumoulin, L. Bergé, M. Piat, E Bréelle, D Prêle, A. Benoit  C. Hoffmann, T. Durand,
         P. Camus  , D. Santos  , Yong Jin  , M Giard



SESSION K : KINETIC INDUCTANCE DETECTORS

K02
Quasiparticle lifetime and noise in tantalum high Q superconducting resonators..........................................518
        R. Barends , J. J. A. Baselmans , S. J. C. Yates , J. R. Gao , J. N. Hovenier ,
         T. M. Klapwijk

K03
Noise and sensitivity of aluminum kinetic inductance detectors for sub-mm astronomy............................ 524
        J. Baselmans, S.J.C. Yates, R. Barends, Y.J.Y. Lankwarden, J.R. Gao,
          H. Hoevers ,T.M. Klapwijk


K04
Lumped Element Kinetic Inductance Detectors........................................................................................,530
        S. Doyle  , P.Mauskopf  , J. Naylon  , A. Porch , C. Duncombe

K05
Optical/UV and X-ray Microwave Kinetic Inductance Strip Detectors.....................................................537
        B.A. Mazin ,  M.E. Eckart , B. Bumble , S. Golwala, P.K. Day, J. Gao,
         J. Zmuidzinas

K06
Kinetic Inductance Phonon Sensors for the Cryogenic Dark Matter Search Experiment..........................544
        M. Daal, B. Sadoulet, J. Gao

K07
        A WIMP Dark Matter Detector Using MKIDs .................................................................................550
        S. Golwala, J. Gao  , D. Moore, B. Mazin  , M. Eckart, B. Bumble  ,
         P. Day, H. G. LeDuc ,J. Zmuidzinas

K08
Equivalence of the effects on the complex conductivity of superconductor due to
 temperature change and external pair breaking.........................................................................................557
        J. Gao , J. Zmuidzinas , A. Vayonakis , P. Day , B. Mazin , H. Leduc

 

SESSION L : NANOWIRE DETECTORS , HOT ELECTRON BOLOMETERS

L01
Energy resolution of a superconducting nanowire single-photon detector............................................... 564
        A.D. Semenov , P. Haas , B. Günther , H.-W. Hübers

L03
Properties of ultra-thin NbN films for membrane-type THz HEB.............................................................570
        B. Guillet , Ö. Arthursson , L. Méchin , M.N. Metzner , M.P. Chauvat ,
         P. Ruterana , V. Drakinskiy , S. Cherednichenko , R. Lefèvre , Y. Delorme,
         J.M. Krieg

L04
Low noise hot-electron bolometer mixers for terahertz frequencies...........................................................575
        S. Cherednichenko and V. Drakinskiy

L05
Characterization of Superconducting Single Photon Detectors fabricated on MgO substrates...................580
        R. Leoni , A. Gaggero , F. Mattioli , and M.G. Castellano

L06
Current-induced critical state in NbN thin-film structures............................................................................585
        K. Il’in, M. Siegel, A. Engel, H. Bartolf, A. Schilling, A. Semenov, H.-W. Huebers

L07
Superconducting Single Photon Nanowire Detectors Development for IR and THz applications...............591
I. Milostnaya, A. Korneev, M. Tarkhov, A. Divochiy, O. Minaeva, V. Seleznev,
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