Integration of single-photon sources and detectors on GaAs
| Autor: | Frank W. M. van Otten, S. Birindelli, Giulia Enrica Digeronimo, Rosalinda Gaudio, Sartoon Fattah Poor, Andrea Fiore, Maurangelo Petruzzella |
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| Přispěvatelé: | Photonics and Semiconductor Nanophysics, Semiconductor Nanophotonics, NanoLab@TU/e |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
lcsh:Applied optics. Photonics
Materials science Photon Superconducting single photon detectors Autocorrelator Nanowire Physics::Optics Quantum photonics integrated circuits 02 engineering and technology 01 natural sciences 7. Clean energy Condensed Matter::Materials Science Optics quantum photonics integrated circuits superconducting single photon detectors quantum dots photonic crystals cavities Photonic crystals cavities 0103 physical sciences Radiology Nuclear Medicine and imaging Emission spectrum 010306 general physics Instrumentation Photonic crystal business.industry Quantum dots Photonic integrated circuit lcsh:TA1501-1820 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Quantum dot Optoelectronics Quantum efficiency 0210 nano-technology business |
| Zdroj: | Photonics, 3(4):3040055, 1-12. Multidisciplinary Digital Publishing Institute (MDPI) Photonics; Volume 3; Issue 4; Pages: 55 Photonics, Vol 3, Iss 4, p 55 (2016) |
| ISSN: | 2304-6732 |
| Popis: | Quantum photonic integrated circuits (QPICs) on a GaAs platform allow the generation, manipulation, routing, and detection of non-classical states of light, which could pave the way for quantum information processing based on photons. In this article, the prototype of a multi-functional QPIC is presented together with our recent achievements in terms of nanofabrication and integration of each component of the circuit. Photons are generated by excited InAs quantum dots (QDs) and routed through ridge waveguides towards photonic crystal cavities acting as filters. The filters with a transmission of 20% and free spectral range ≥66 nm are able to select a single excitonic line out of the complex emission spectra of the QDs. The QD luminescence can be measured by on-chip superconducting single photon detectors made of niobium nitride (NbN) nanowires patterned on top of a suspended nanobeam, reaching a device quantum efficiency up to 28%. Moreover, two electrically independent detectors are integrated on top of the same nanobeam, resulting in a very compact autocorrelator for on-chip g(2)(τ) measurements. |
| Databáze: | OpenAIRE |
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