| Records |
| Author |
Rath, P.; Vetter, A.; Kovalyuk, V.; Ferrari, S.; Kahl, O.; Nebel, C.; Goltsman, G. N.; Korneev, A.; Pernice, W. H. P. |
| Title |
Travelling-wave single-photon detectors integrated with diamond photonic circuits: operation at visible and telecom wavelengths with a timing jitter down to 23 ps |
Type |
Conference Article |
| Year |
2016 |
Publication |
Integrated Optics: Devices, Mat. Technol. XX |
Abbreviated Journal |
Integrated Optics: Devices, Mat. Technol. XX |
| Volume |
9750 |
Issue |
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Pages |
135-142 |
| Keywords |
SSPD, Superconducting Nanowire Single-Photon Detector, SNSPD, Single Photon Detector, Diamond Photonics, Diamond Integrated Optics, Diamond Waveguides, Integrated Optics, Low Timing Jitter |
| Abstract |
We report on the design, fabrication and measurement of travelling-wave superconducting nanowire single-photon detectors (SNSPDs) integrated with polycrystalline diamond photonic circuits. We analyze their performance both in the near-infrared wavelength regime around 1600 nm and at 765 nm. Near-IR detection is important for compatibility with the telecommunication infrastructure, while operation in the visible wavelength range is relevant for compatibility with the emission line of silicon vacancy centers in diamond which can be used as efficient single-photon sources. Our detectors feature high critical currents (up to 31 μA) and high performance in terms of efficiency (up to 74% at 765 nm), noise-equivalent power (down to 4.4×10-19 W/Hz1/2 at 765 nm) and timing jitter (down to 23 ps). |
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Spie |
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Editor |
Broquin, J.-E.; Conti, G.N. |
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1210 |
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| Author |
Kovalyuk, V.; Hartmann, W.; Kahl, O.; Kaurova, N.; Korneev, A.; Goltsman, G.; Pernice, W. H. P. |
| Title |
Absorption engineering of NbN nanowires deposited on silicon nitride nanophotonic circuits |
Type |
Journal Article |
| Year |
2013 |
Publication |
Opt. Express |
Abbreviated Journal |
Opt. Express |
| Volume |
21 |
Issue |
19 |
Pages |
22683-22692 |
| Keywords |
SSPD, SNSPD, NbN nanoeires, Si3N4 waveguides |
| Abstract |
We investigate the absorption properties of U-shaped niobium nitride (NbN) nanowires atop nanophotonic circuits. Nanowires as narrow as 20nm are realized in direct contact with Si3N4 waveguides and their absorption properties are extracted through balanced measurements. We perform a full characterization of the absorption coefficient in dependence of length, width and separation of the fabricated nanowires, as well as for waveguides with different cross-section and etch depth. Our results show excellent agreement with finite-element analysis simulations for all considered parameters. The experimental data thus allows for optimizing absorption properties of emerging single-photon detectors co-integrated with telecom wavelength optical circuits. |
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1094-4087 |
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PMID:24104155 |
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no |
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1213 |
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| Author |
Pyatkov, F.; Khasminskaya, S.; Kovalyuk, V.; Hennrich, F.; Kappes, M. M.; Goltsman, G. N.; Pernice, W. H. P.; Krupke, R. |
| Title |
Sub-nanosecond light-pulse generation with waveguide-coupled carbon nanotube transducers |
Type |
Journal Article |
| Year |
2017 |
Publication |
Beilstein J. Nanotechnol. |
Abbreviated Journal |
Beilstein J. Nanotechnol. |
| Volume |
8 |
Issue |
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Pages |
38-44 |
| Keywords |
carbon nanotubes; CNT; infrared; integrated optics devices; nanomaterials |
| Abstract |
Carbon nanotubes (CNTs) have recently been integrated into optical waveguides and operated as electrically-driven light emitters under constant electrical bias. Such devices are of interest for the conversion of fast electrical signals into optical ones within a nanophotonic circuit. Here, we demonstrate that waveguide-integrated single-walled CNTs are promising high-speed transducers for light-pulse generation in the gigahertz range. Using a scalable fabrication approach we realize hybrid CNT-based nanophotonic devices, which generate optical pulse trains in the range from 200 kHz to 2 GHz with decay times below 80 ps. Our results illustrate the potential of CNTs for hybrid optoelectronic systems and nanoscale on-chip light sources. |
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Department of Materials and Earth Sciences, Technische Universitat Darmstadt, Darmstadt 64287, Germany |
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2190-4286 |
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PMID:28144563; PMCID:PMC5238692 |
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no |
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RPLAB @ kovalyuk @ |
Serial |
1109 |
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