Company presentation Closed Joint Stock Company Superconducting - PowerPoint PPT Presentation

Company presentation Closed Joint Stock Company Superconducting nanotechnology SCONTEL 1

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

Superconducting films Films from NbN or MoRe are used 3

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

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

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

Mechanism of SSPD Photon Detection 7

Two-channel Superconducting Single Photon Receiver 8

Quantum efficiency and Dark count rate of SSPD receiver 9

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

Comparison with competitors Working Quantum Time Dark Quality Dead time, The type of temperature, efficiency, resolution, counts, D, parameter, ns  t, ps detector К QE, % Hz H Photo Multiplier 2  10 5 3.33  10 2 200 2 300 100 Tube InGaAs 2.97  10 5 photodiode 200 10 370 91 0.1 (APD) Frequency up- 2  10 4 2.5  10 4 conversion 300 2 40 100 detectors Transition edge 1.67  10 6 0.1 50 100 3 1 sensor (TES) SSPD 5  10 7 25 10 2 25 2 For λ = 1,55 µm 11

Implementation of NbN SSPD: Silicon CMOS IC Device Debug Normally operating nMOS transistor emits near IR photons (0.9-1.4um) when current passes through the channel. www.research.ibm.com/topics/serious/c Time-correlated photon emission hip/images/ detection measures transistor switching time. 12

Long-distance quantum key distribution Hiroki Takesue, Sae Woo Nam, Qiang Zhang, et. al., Nature photonics, Vol.1., 343-348, June, 2007. 13

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

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

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

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

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

Technical specifications of the THz receivers Type 1 1a 2 2a 3 3a Frequency range, 0.1-6 1-40 20-100 THz Noise equivalent power (NEP), 5-7 × 10 -14 3-5 × 10 -13 1-2 × 10 -11 6-8 × 10 -11 1-2 × 10 -12 4-5 × 10 -12 W × Hz -1/2 Response time, ns 1 0.05 1 0.05 1 0.05 Dynamic range, 0.1 50 2 µW Bandwidth of 0.01-200 1-3500 0.01-200 1-3500 0.01-200 1-3500 amplifier, MHz 19

Advantages and Applications of THz receivers Possible applications: Advantages: Radio astronomy observations • Response time down to 50 ps • (including space-based) Terahertz spectroscopy • Ultra high sensitivity (noise • equivalent power (NEP) down Near-field microscopy • to 10- 14 W·Hz -1/2) All-weather navigation systems • Operation frequency range • Atmospheric Remote Sensing • from 0.1 THz to 70 THz Fusion Diagnostics • Registration of short pulses • Electron cyclotron emission and • (from nano- to picoseconds THz interferometry pulses) Terahertz imaging for security • Different beam geometry • Laser radiation detection • (beam pattern F/3 to F/∞ (collimated beam)) Materials Characterization • Network Analyses • 20

Comparison with others SCONTEL Semiconductors THz receivers HEB Neceivers HgCdTe InSb Ge:Ga Si NbN MoRe Detector type Operation 77 K 4 K 4 K 4 K 4 K 4 K temperature 4 ÷ 20  m 15 ÷ 2000  m 3 ÷ 1000  m 3 ÷ 1000  m 60 ÷ 120  m 0.6 ÷ 5 mm Wavelength range bandwidth ~30% ~1  s ~ 1  s ~ 10  s ~ 200  s ~ 50 ps ~ 1 ns Response time <3 ∙ 10 -13 <5 ∙ 10 -14 ~10 -12 ~10 -12 ~10 -12 ~10 -13 NEP, W/Hz 0.5 21

HEB mixer application in ground- based 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 ground- based heterodyne detection in the terahertz band. http://www.cfa.harvard.edu/srlab/rxlabHEB.html http://www.cfa.harvard.edu/srlab/secure/rxlabTerahertzScience.html 22

Heterodyne astronomy projects with wide-bandwidth HEB mixers HERSCHEL 3.5-m diameter space telescope Bands 6 and 7 of the HIFI: SOFIA 1.41 THz – 1.91 THz 2.7-m diameter stratospheric telescope Heterodyne receivers in the ranges 1.6-1.9 THz, 2.4-2.7 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

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

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

Our customers Europe Asia North America 26

Thank you for your attention 27