Records |
Author |
Tarkhov, M.; Claudon, J.; Poizat, J. Ph.; Korneev, A.; Divochiy, A.; Minaeva, O.; Seleznev, V.; Kaurova, N.; Voronov, B.; Semenov, A. V.; Gol'tsman, G. |
Title |
Ultrafast reset time of superconducting single photon detectors |
Type |
Journal Article |
Year |
2008 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
92 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
24 |
Pages |
241112 (1 to 3) |
Keywords |
SSPD, SNSPD |
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0003-6951 |
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Serial |
429 |
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Author |
Hadfield, Robert. H.; Habif, Jonathan L.; Schlafer, John; Schwall, Robert. E.; Nam, Sae Woo |
Title |
Quantum key distribution at 1550 nm with twin superconducting single-photon detectors |
Type |
Journal Article |
Year |
2006 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
89 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
24 |
Pages |
241129 |
Keywords |
SSPD, quantum cryptography |
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0003-6951 |
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Serial |
533 |
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Author |
Mohan, N.; Minaeva, O.; Gol'tsman, G. N.; Nasr, M. B.; Saleh, B. E.; Sergienko, A. V.; Teich, M. C. |
Title |
Photon-counting optical coherence-domain reflectometry using superconducting single-photon detectors |
Type |
Journal Article |
Year |
2008 |
Publication |
Opt. Express |
Abbreviated Journal |
Opt. Express |
Volume |
16 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
22 |
Pages |
18118-18130 |
Keywords |
SSPD, SNSPD |
Abstract |
We consider the use of single-photon counting detectors in coherence-domain imaging. Detectors operated in this mode exhibit reduced noise, which leads to increased sensitivity for weak light sources and weakly reflecting samples. In particular, we experimentally demonstrate the possibility of using superconducting single-photon detectors (SSPDs) for optical coherence-domain reflectometry (OCDR). These detectors are sensitive over the full spectral range that is useful for carrying out such imaging in biological samples. With counting rates as high as 100 MHz, SSPDs also offer a high rate of data acquisition if the light flux is sufficient. |
Address |
Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA. nm82@bu.edu |
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1094-4087 |
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PMID:18958090 |
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Serial |
1407 |
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Author |
Elezov, M.; Ozhegov, R.; Goltsman, G.; Makarov, V. |
Title |
Countermeasure against bright-light attack on superconducting nanowire single-photon detector in quantum key distribution |
Type |
Journal Article |
Year |
2019 |
Publication |
Opt. Express |
Abbreviated Journal |
Opt. Express |
Volume |
27 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
21 |
Pages |
30979-30988 |
Keywords |
SSPD, SNSPD |
Abstract |
We present an active anti-latching system for superconducting nanowire single-photon detectors. We experimentally test it against a bright-light attack, previously used to compromise security of quantum key distribution. Although our system detects continuous blinding, the detector is shown to be partially blindable and controllable by specially tailored sequences of bright pulses. Improvements to the countermeasure are suggested. |
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English |
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1094-4087 |
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PMID:31684339 |
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no |
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Serial |
1275 |
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Author |
Seki, T.; Shibata, H.; Takesue, H.; Tokura, Y.; Imoto, N. |
Title |
Comparison of timing jitter between NbN superconducting single-photon detector and avalanche photodiode |
Type |
Journal Article |
Year |
2010 |
Publication |
Phys. C |
Abbreviated Journal |
Phys. C |
Volume |
470 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
20 |
Pages |
1534-1537 |
Keywords |
SSPD; APD; jitter |
Abstract |
We report the pulse-to-pulse timing jitter measurement of a niobium nitride (NbN) superconducting single-photon detector (SSPD) and an InGaAs avalanche photodiode (APD) at 1550-nm wavelength. A direct comparison of their timing jitter was performed by using the same experimental configuration to measure both detectors. The measured jitter of the SSPD and the APD are 75 and 84 ps at full-width at half-maximum (FWHM), and 138 and 384 ps at full-width at tenth-maximum (FWTM), respectively. The jitter of the SSPD remains small at FWTM while that of APD is wide. We also estimated the transmission distances and secure key generation rates for fiber-based quantum key distribution (QKD) which uses these detectors. The estimated transmission distances of the APD are 86 km and 107 km with respect to 1 ns and 100 ps time windows, respectively, and those of the SSPD are 125 km and 172 km with respect to 1 ns and 100 ps time windows, respectively. This estimation indicates the SSPDЃfs advantages for QKD compared to the APD. |
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RPLAB @ akorneev @ |
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613 |
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Author |
Mohan, Nishant; Minaeva, Olga; Goltsman, Gregory N.; Saleh, Mohammed F.; Nasr, Magued B.; Sergienko, Alexander V.; Saleh, Bahaa E.; Teich, Malvin C. |
Title |
Ultrabroadband coherence-domain imaging using parametric downconversion and superconducting single-photon detectors at 1064 nm |
Type |
Journal Article |
Year |
2009 |
Publication |
Appl. Opt. |
Abbreviated Journal |
Appl. Opt. |
Volume |
48 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
20 |
Pages |
4009–4017 |
Keywords |
SSPD, SNSPD, SPAD |
Abstract |
Coherence-domain imaging systems can be operated in a single-photon-counting mode, offering low detector noise; this in turn leads to increased sensitivity for weak light sources and weakly reflecting samples. We have demonstrated that excellent axial resolution can be obtained in a photon-counting coherence-domain imaging (CDI) system that uses light generated via spontaneous parametric downconversion (SPDC) in a chirped periodically poled stoichiometric lithium tantalate (chirped-PPSLT) structure, in conjunction with a niobium nitride superconducting single-photon detector (SSPD). The bandwidth of the light generated via SPDC, as well as the bandwidth over which the SSPD is sensitive, can extend over a wavelength region that stretches from 700 to 1500 nm. This ultrabroad wavelength band offers a near-ideal combination of deep penetration and ultrahigh axial resolution for the imaging of biological tissue. The generation of SPDC light of adjustable bandwidth in the vicinity of 1064 nm, via the use of chirped-PPSLT structures, had not been previously achieved. To demonstrate the usefulness of this technique, we construct images for a hierarchy of samples of increasing complexity: a mirror, a nitrocellulose membrane, and a biological sample comprising onion-skin cells. |
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RPLAB @ gujma @ |
Serial |
652 |
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Author |
Korneev, A.; Lipatov, A.; Okunev, O.; Chulkova, G.; Smirnov, K.; Gol’tsman, G.; Zhang, J.; Slysz, W.; Verevkin, A.; Sobolewski, R. |
Title |
GHz counting rate NbN single-photon detector for IR diagnostics of VLSI CMOS circuits |
Type |
Journal Article |
Year |
2003 |
Publication |
Microelectronic Engineering |
Abbreviated Journal |
Microelectronic Engineering |
Volume |
69 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
2-4 |
Pages |
274-278 |
Keywords |
NbN SSPD, SNSPD, applications |
Abstract |
We present a new, simple to manufacture superconducting single-photon detector operational in the range from ultraviolet to mid-infrared radiation wavelengths. The detector combines GHz counting rate, high quantum efficiency and very low level of dark (false) counts. At 1.3–1.5 μm wavelength range our detector exhibits a quantum efficiency of 5–10%. The detector photoresponse voltage pulse duration was measured to be about 150 ps with jitter of 35 ps and both of them were limited mostly by our measurement equipment. In terms of quantum efficiency, dark counts level, speed of operation the detector surpasses all semiconductor counterparts and was successfully applied for CMOS integrated circuits diagnostics. |
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0167-9317 |
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1511 |
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Marsili, F.; Bitauld, D.; Fiore, A.; Gaggero, A.; Leoni, R.; Mattioli, F.; Divochiy, A.; Korneev, A.; Seleznev, V.; Kaurova, N.; Minaeva, O.; Goltsman, G. |
Title |
Superconducting parallel nanowire detector with photon number resolving functionality |
Type |
Journal Article |
Year |
2009 |
Publication |
J. Modern Opt. |
Abbreviated Journal |
J. Modern Opt. |
Volume |
56 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
2-3 |
Pages |
334-344 |
Keywords |
PNR; SSPD; SNSPD; thin superconducting films; photon number resolving detector; multiplication noise; telecom wavelength; NbN |
Abstract |
We present a new photon number resolving detector (PNR), the Parallel Nanowire Detector (PND), which uses spatial multiplexing on a subwavelength scale to provide a single electrical output proportional to the photon number. The basic structure of the PND is the parallel connection of several NbN superconducting nanowires (100 nm-wide, few nm-thick), folded in a meander pattern. Electrical and optical equivalents of the device were developed in order to gain insight on its working principle. PNDs were fabricated on 3-4 nm thick NbN films grown on sapphire (substrate temperature TS=900C) or MgO (TS=400C) substrates by reactive magnetron sputtering in an Ar/N2 gas mixture. The device performance was characterized in terms of speed and sensitivity. The photoresponse shows a full width at half maximum (FWHM) as low as 660ps. PNDs showed counting performance at 80 MHz repetition rate. Building the histograms of the photoresponse peak, no multiplication noise buildup is observable and a one photon quantum efficiency can be estimated to be QE=3% (at 700 nm wavelength and 4.2 K temperature). The PND significantly outperforms existing PNR detectors in terms of simplicity, sensitivity, speed, and multiplication noise. |
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0950-0340 |
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RPLAB @ gujma @ |
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701 |
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Słysz, W.; Wegrzecki, M.; Bar, J.; Grabiec, P.; Górska, M.; Zwiller, V.; Latta, C.; Böhi, P.; Pearlman, A.J.; Cross, A.S.; Pan, D.; Kitaygorsky, J.; Komissarov, I.; Verevkin, A.; Milostnaya, I.; Korneev, A.; Minayeva, O.; Chulkova, G.; Smirnov, K.; Voronov, B.; Gol’tsman, G.N.; Sobolewski, R. |
Title |
Fibre-coupled, single photon detector based on NbN superconducting nanostructures for quantum communications |
Type |
Journal Article |
Year |
2007 |
Publication |
J. Modern Opt. |
Abbreviated Journal |
J. Modern Opt. |
Volume |
54 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
2-3 |
Pages |
315-326 |
Keywords |
NbN SSPD, SNSPD |
Abstract |
We present a novel, two-channel, single photon receiver based on two fibre-coupled, NbN, superconducting, single photon detectors (SSPDs). The SSPDs are nanostructured superconducting meanders and are known for ultrafast and efficient detection of visible-to-infrared photons. Coupling between the NbN detector and optical fibre was achieved using a micromechanical photoresist ring placed directly over the SSPD, holding the fibre in place. With this arrangement, we obtained coupling efficiencies up to ∼30%. Our experimental results showed that the best receiver had a near-infrared system quantum efficiency of 0.33% at 4.2 K. The quantum efficiency increased exponentially with the photon energy increase, reaching a few percent level for visible-light photons. The photoresponse pulses of our devices were limited by the meander high kinetic inductance and had the rise and fall times of approximately 250 ps and 5 ns, respectively. The receiver's timing jitter was in the 37 to 58 ps range, approximately 2 to 3 times larger than in our older free-space-coupled SSPDs. We stipulate that this timing jitter is in part due to optical fibre properties. Besides quantum communications, the two-detector arrangement should also find applications in quantum correlation experiments. |
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0950-0340 |
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1434 |
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Rosfjord, Kristine M.; Yang, Joel K. W.; Dauler, Eric A.; Kerman, Andrew J.; Vikas Anant; Voronov, Boris M.; Gol'tsman, Gregory N.; Berggren, Karl K. |
Title |
Nanowire Single-photon detector with an integrated optical cavity and anti-reflection coating |
Type |
Journal Article |
Year |
2006 |
Publication |
Opt. Express |
Abbreviated Journal |
Opt. Express |
Volume |
14 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
2 |
Pages |
527-534 |
Keywords |
SSPD, SNSPD, cavity |
Abstract |
We have fabricated and tested superconducting single-photon detectors and demonstrated detection efficiencies of 57% at 1550-nm wavelength and 67% at 1064 nm. In addition to the peak detection efficiency, a median detection efficiency of 47.7% was measured over 132 devices at 1550 nm. These measurements were made at 1.8K, with each device biased to 97.5% of its critical current. The high detection efficiencies resulted from the addition of an optical cavity and anti-reflection coating to a nanowire photodetector, creating an integrated nanoelectrophotonic device with enhanced performance relative to the original device. Here, the testing apparatus and the fabrication process are presented. The detection efficiency of devices before and after the addition of optical elements is also reported. |
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1094-4087 |
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PMID:19503367 |
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no |
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388 |
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