Aluminum-Titanium Bilayer for Near-Infrared Transition Edge Sensors

被引:15
作者
Lolli, Lapo [1 ]
Taralli, Emanuele [1 ]
Portesi, Chiara [1 ]
Rajteri, Mauro [1 ]
Monticone, Eugenio [1 ]
机构
[1] Ist Nazl Ric Metrol, St Cacce 91, I-10135 Turin, Italy
关键词
photon counting detector; superconductivity; optics; EFFICIENCY;
D O I
10.3390/s16070953
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Transition-edge sensors (TESs) are single photon detectors attractive for applications in quantum optics and quantum information experiments owing to their photon number resolving capability. Nowadays, high-energy resolution TESs for telecommunication are based on either W or Au/Ti films, demonstrating slow recovery time constants. We report our progress on the development of an Al/Ti TES. Since bulk aluminum has a critical temperature (T-c) of ca. 1.2 K and a sufficiently low specific heat (less than 10(-4) J/cm(3)K(2)), it can be employed to produce the sensitive material for optical TESs. Furthermore, exploiting its high T-c, Al-based TESs can be trimmed in a wider temperature range with respect to Ti or W. A first Al/Ti TES with a T-c approximate to 142 mK, investigated from a thermal and optical point of view, has shown a response time constant of about 2 mu s and single photon discrimination with 0.34 eV energy resolution at telecom wavelength, demonstrating that Al/Ti films are suitable to produce TESs for visible and NIR photon counting.
引用
收藏
页数:7
相关论文
共 21 条
  • [1] Titanium Superconducting Photon-Number-Resolving Detector
    Fukuda, Daiji
    Fujii, Go
    Numata, Takayuki
    Amemiya, Kuniaki
    Yoshizawa, Akio
    Tsuchida, Hidemi
    Fujino, Hidetoshi
    Ishii, Hiroyuki
    Itatani, Taro
    Inoue, Shuichiro
    Zama, Tatsuya
    [J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2011, 21 (03) : 241 - 245
  • [2] Opportunities for mesoscopics in thermometry and refrigeration:: Physics and applications
    Giazotto, F
    Heikkilä, TT
    Luukanen, A
    Savin, AM
    Pekola, JP
    [J]. REVIEWS OF MODERN PHYSICS, 2006, 78 (01) : 217 - 274
  • [3] A fully lithographed voltage-biased superconducting spiderweb bolometer
    Gildemeister, JM
    Lee, AT
    Richards, PL
    [J]. APPLIED PHYSICS LETTERS, 1999, 74 (06) : 868 - 870
  • [4] Irwin KD, 2005, TOP APPL PHYS, V99, P63
  • [5] Energy collection efficiency of tungsten transition-edge sensors in the near-infrared
    Lita, A. E.
    Miller, A. J.
    Nam, S.
    [J]. JOURNAL OF LOW TEMPERATURE PHYSICS, 2008, 151 (1-2) : 125 - 130
  • [6] High-Efficiency Photon-Number-Resolving Detectors based on Hafnium Transition-Edge Sensors
    Lita, A. E.
    Calkins, B.
    Pellochoud, L. A.
    Miller, A. J.
    Nam, S.
    [J]. LOW TEMPERATURE DETECTORS LTD 13, 2009, 1185 : 351 - +
  • [7] Lita AE, 2008, OPT EXPRESS, V16, P3032, DOI 10.1364/OE.16.003032
  • [8] High intrinsic energy resolution photon number resolving detectors
    Lolli, L.
    Taralli, E.
    Portesi, C.
    Monticone, E.
    Rajteri, M.
    [J]. APPLIED PHYSICS LETTERS, 2013, 103 (04)
  • [9] Ti/Au TES to Discriminate Single Photons
    Lolli, L.
    Taralli, E.
    Rajteri, M.
    [J]. JOURNAL OF LOW TEMPERATURE PHYSICS, 2012, 167 (5-6) : 803 - 808
  • [10] Ti/Au Transition-Edge Sensors Coupled to Single Mode Optical Fibers Aligned by Si V-Groove
    Lolli, Lapo
    Taralli, Emanuele
    Portesi, Chiara
    Alberto, Diego
    Rajteri, Mauro
    Monticone, Eugenio
    [J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2011, 21 (03) : 215 - 218