Company presentation. Closed Joint Stock Company Superconducting nanotechnology SCONTEL

Transcription

1 Company presentation Closed Joint Stock Company Superconducting nanotechnology SCONTEL 1

2 About us SCONTEL was founded in 2004 as a spinoff of the Radio-Physics Research&Education Center (RPhREC) (group leader Prof. Gregory Gol tsman) at the Department of Physics of Moscow State Pedagogical University. The commercial activity of company based on the results of the RPhREC s research in the field of hot-electron phenomena in ultra thin superconducting films and its application to practical superconducting devices. 2

3 Superconducting films Films from NbN or MoRe are used 3

4 Superconducting Single Photon Detectors Products Detectors for THz and Middle IR ranges 4

5 Superconducting Single Photon Detectors Products Detectors for THz and Middle IR ranges Cryogenic Insert for a standard liquid helium storage Dewar Closed Cycle Refrigerator (Cryogenic Free) Liquid Helium Cryostat 5

6 Superconducting Single Photon Detectors Sensitive element of SSPD Standard single-mode optical fibers: Nufern 780-HP, Corning SMF 28, ZBLAN. Optical coupling 6

7 Mechanism of SSPD Photon Detection 7

8 Two-channel Superconducting Single Photon Receiver 8

9 Quantum efficiency and Dark count rate of SSPD receiver 9

10 Advantages and Applications of SSPD Advantages of SSPD: Possible applications: Operation in the visible and infrared ranges (overlapping unavailable for the APD range); Very low level of dark counts (below 10 cps) Picosecond time resolution; High quantum efficiency (up to 25%); Operation in a continuous mode; No afterpulsing; One, two, or multi-channel systems are available; Standard single-mode fiber input; Photonic quantum computing Photon correlation measurements Quantum cryptography Free space communication LIDAR Time-resolved fluorescence measurements Picosecond Integrated Circuits analysis (PICA) Single quantum dot/molecule fluorescence spectroscopy Registration of extra low IR photon flux Optical tomography 10

11 Comparison with competitors Working Quantum Time Dark Quality Dead time, The type of temperature, efficiency, resolution, counts, D, parameter, ns detector К QE, % t, ps Hz H Photo Multiplier Tube InGaAs photodiode (APD) Frequency upconversion detectors Transition edge sensor (TES) SSPD For λ = 1,55 µm 11

12 Implementation of NbN SSPD: Silicon CMOS IC Device Debug Normally operating nmos transistor emits near IR photons ( um) when current passes through the channel. Time-correlated photon emission detection measures transistor switching time. hip/images/ 12

13 Long-distance quantum key distribution Hiroki Takesue, Sae Woo Nam, Qiang Zhang, et. al., Nature photonics, Vol.1., , June,

14 Superconducting NbN single-photon detector for detection of individual massive and neutral biological molecules Markus Marksteiner, Philipp Haslinger, Michele Sclafani, Hendrik Ulbricht, Markus Arndt, Faculty of Physics, University of Vienna 14

15 Superconducting NbN single-photon detector for detection of individual massive and neutral biological molecules A typical individual peak, which we attribute to the detection of neutral molecule hitting the chip. The signal was recorded with a 20x20 m SSPD chip after 20 db amplification. Bias current: 19.5 A. 15

16 Fast Receivers for THz and Middle IR ranges Receiver System based on the Superconducting Hot Electron Bolometer (SHEB) technology 16

17 Superconducting Hot Electron Bolometer Any radiation impinging on the absorptive element raises its temperature what destruct superconductive state of film and leads to voltage s change. 17

18 System s operating characteristics Typical frequency dependence of the noise equivalent power (NEP) for the three types of receiver systems. 18

19 Technical specifications of the THz receivers Type 1 1a 2 2a 3 3a Frequency range, THz Noise equivalent power (NEP), W Hz -1/ Response time, ns Dynamic range, µw Bandwidth of amplifier, MHz

20 Advantages and Applications of THz receivers Advantages: Response time down to 50 ps Ultra high sensitivity (noise equivalent power (NEP) down to W Hz-1/2) Operation frequency range from 0.1 THz to 70 THz Registration of short pulses (from nano- to picoseconds THz pulses) Different beam geometry (beam pattern F/3 to F/ (collimated beam)) Possible applications: Radio astronomy observations (including space-based) Terahertz spectroscopy Near-field microscopy All-weather navigation systems Atmospheric Remote Sensing Fusion Diagnostics Electron cyclotron emission and interferometry Terahertz imaging for security Laser radiation detection Materials Characterization Network Analyses 20

21 Comparison with others Semiconductors THz receivers SCONTEL HEB Neceivers Detector type HgCdTe InSb Ge:Ga Si NbN MoRe Operation temperature 77 K 4 K 4 K 4 K 4 K 4 K Wavelength range 4 20 m bandwidth ~30% mm m m m m Response time ~1 s ~ 1 s ~ 10 s ~ 200 s ~ 50 ps ~ 1 ns NEP, W/Hz 0.5 ~10-12 ~10-12 ~10-12 ~10-13 < <

22 HEB mixer application in groundbased radio astronomy 10-meter the Heinrich Hertz Telescope (HHT) on Mt. Graham (Arizona, USA). First fully-resolved ground-based detection of a terahertz spectral line from an astronomical source (CO 9-8 in Orion BN/KL) was obtained with the HEB receiver (January 2000). The first groundbased heterodyne detection in the terahertz band

23 Heterodyne astronomy projects with wide-bandwidth HEB mixers HERSCHEL 3.5-m diameter space telescope Bands 6 and 7 of the HIFI: 1.41 THz 1.91 THz SOFIA 2.7-m diameter stratospheric telescope Heterodyne receivers in the ranges THz, THz, 4.7 THz Millimetron 12-m diameter space telescope Heterodyne receivers in 1-6 THz range The GBW of the HEB receiver installed at the HERSHEL telescope does not exceed 4 GHz. Future heterodyne missions will require a GBW of 8 GHz. PDHEBs already have a GBW of 6.5 GHz and potentially can have a GBW of up to 12 GHz. 23

24 Security systems Thermovisors of THz range able to distinguish objects on distance about 20-30m hidden under clothes: plastic and metallic weapon, explosion materials, drugs, etc. THz imagine of hidden in the shoes ceramic knife and explosive. Fast identification of chemical components is possible in THz range even in close package (for example box on mail post). 24

25 Full-support service (installation, operation training, technical support) Local or remote control SCONTEL Easy to integrate with LabView and other standard environment One, two, or multichannel systems are available Optimization of receiver system characteristics to the customer needs 25

26 Our customers Europe North America Asia 26

27 Thank you for your attention 27