Zobrazeno 1 - 10
of 172
pro vyhledávání: '"Dan Dalacu"'
Autor:
Matteo Pennacchietti, Brady Cunard, Shlok Nahar, Mohd Zeeshan, Sayan Gangopadhyay, Philip J. Poole, Dan Dalacu, Andreas Fognini, Klaus D. Jöns, Val Zwiller, Thomas Jennewein, Norbert Lütkenhaus, Michael E. Reimer
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-7 (2024)
Abstract An on-demand source of bright entangled photon pairs is desirable for quantum key distribution (QKD) and quantum repeaters. The leading candidate to generate such pairs is based on spontaneous parametric down-conversion (SPDC) in non-linear
Externí odkaz:
https://doaj.org/article/c546e7d4b5cf4f78bec7719c0667781c
Autor:
Naresh Sharma, Zizheng Li, Bruno Lopez-Rodriguez, Joey Vrugt, Stijn van der Waal, Luozhen Li, Roald van der Kolk, Philip J Poole, Dan Dalacu, Iman Esmaeil Zadeh
Publikováno v:
Materials for Quantum Technology, Vol 4, Iss 3, p 035401 (2024)
Recent efforts in quantum photonics emphasize on-chip generation, manipulation, and detection of single photons for quantum computing and quantum communication. In quantum photonic chips, single photons are often generated using parametric down-conve
Externí odkaz:
https://doaj.org/article/d93989b753ac4d55977643adcb00a6c7
Autor:
Patrick Laferrière, Edith Yeung, Isabelle Miron, David B. Northeast, Sofiane Haffouz, Jean Lapointe, Marek Korkusinski, Philip J. Poole, Robin L. Williams, Dan Dalacu
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Abstract We report on a platform for the production of single photon devices with a fabrication yield of 100%. The sources are based on InAsP quantum dots embedded within position-controlled bottom-up InP nanowires. Using optimized growth conditions,
Externí odkaz:
https://doaj.org/article/8f5387a264b14bed846ee097b55d270e
Autor:
Jason Phoenix, Marek Korkusinski, Dan Dalacu, Philip J. Poole, Piotr Zawadzki, Sergei Studenikin, Robin L. Williams, Andrew S. Sachrajda, Louis Gaudreau
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-6 (2022)
Abstract We study experimentally and theoretically the in-plane magnetic field dependence of the coupling between dots forming a vertically stacked double dot molecule. The InAsP molecule is grown epitaxially in an InP nanowire and interrogated optic
Externí odkaz:
https://doaj.org/article/61f0c7c214db4d7cba71734ab89f99c0
Autor:
David B. Northeast, Dan Dalacu, John F. Weber, Jason Phoenix, Jean Lapointe, Geof C. Aers, Philip J. Poole, Robin L. Williams
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Abstract We present a compact, fibre-coupled single photon source using gradient-index (GRIN) lenses and an InAsP semiconductor quantum dot embedded within an InP photonic nanowire waveguide. A GRIN lens assembly is used to collect photons close to t
Externí odkaz:
https://doaj.org/article/76162e75090147b7a0f0ceef7d5d0f1d
Autor:
Philipp Aumann, Maximilian Prilmüller, Florian Kappe, Laurin Ostermann, Dan Dalacu, Philip J. Poole, Helmut Ritsch, Wolfgang Lechner, Gregor Weihs
Publikováno v:
AIP Advances, Vol 12, Iss 5, Pp 055115-055115-7 (2022)
Resonant excitation of the biexciton state in an InAsP quantum dot by a phase-coherent pair of picosecond pulses allows preparing time-bin entangled pairs of photons via the biexciton–exciton cascade. We show that this scheme can be implemented for
Externí odkaz:
https://doaj.org/article/ea470e20a5df4f13bed36a9c70449f6c
Autor:
Galih R. Suwito, Vladimir G. Dubrovskii, Zixiao Zhang, Weizhen Wang, Sofiane Haffouz, Dan Dalacu, Philip J. Poole, Peter Grutter, Nathaniel J. Quitoriano
Publikováno v:
Nanomaterials, Vol 13, Iss 5, p 894 (2023)
Controlling the morphology and composition of semiconductor nano- and micro-structures is crucial for fundamental studies and applications. Here, Si-Ge semiconductor nanostructures were fabricated using photolithographically defined micro-crucibles o
Externí odkaz:
https://doaj.org/article/b179f99e130643598a66812ee1807b12
Autor:
Patrick Laferriére, Sofiane Haffouz, David B. Northeast, Philip J. Poole, Robin L. Williams, Dan Dalacu
Publikováno v:
Nano Letters. 23:962-968
Single photon emitters are a key component for enabling the practical use of quantum key distribution protocols for secure communications. For long-haul optical networks it is imperative to use photons at wavelengths that are compatible with standard
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d30b0fe59d250b767d9a334dddfc7e2f
https://doi.org/10.1021/acs.nanolett.2c04375
https://doi.org/10.1021/acs.nanolett.2c04375
Autor:
Ali W. Elshaari, Iman Esmaeil Zadeh, Andreas Fognini, Michael E. Reimer, Dan Dalacu, Philip J. Poole, Val Zwiller, Klaus D. Jöns
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Combining different integration platforms on the same chip is currently one of the main challenges for quantum technologies. Here, Elshaari et al. show III-V Quantum Dots embedded in nanowires operating in a CMOS compatible circuit, with controlled o
Externí odkaz:
https://doaj.org/article/0bbf7bc1c90a4e35b2caea0cc829a5e9
Autor:
Milad Khoshnegar, Tobias Huber, Ana Predojević, Dan Dalacu, Maximilian Prilmüller, Jean Lapointe, Xiaohua Wu, Philippe Tamarat, Brahim Lounis, Philip Poole, Gregor Weihs, Hamed Majedi
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Multipartite photon states are desirable in quantum information technology but their generation in optical systems is less efficient with poor scaling. Here the authors demonstrate time-ordered photon triplets from a quantum dot molecule in a direct
Externí odkaz:
https://doaj.org/article/99edf1f88dd84452be9aecf70cebbc66