Searched for: author%3A%22Zwiller%2C+V.G.%22
(1 - 12 of 12)
document
Elsinger, Lukas (author), Gourgues, R.B.M. (author), Esmaeil Zadeh, I.Z. (author), Maes, Jorick (author), Guardiani, A. (author), Bulgarini, G. (author), Pereira, S.F. (author), Dorenbos, S.N. (author), Zwiller, V.G. (author)
Single-photon sources and detectors are indispensable building blocks for integrated quantum photonics, a research field that is seeing ever increasing interest for numerous applications. In this work, we implemented essential components for a quantum key distribution transceiver on a single photonic chip. Plasmonic antennas on top of silicon...
journal article 2019
document
Fognini, A.W. (author), Ahmadi, A.S. (author), Daley, S.M. (author), Reimer, M.E. (author), Zwiller, V.G. (author)
We analyze the degree of entanglement measurable from a quantum dot via the biexciton-exciton cascade as a function of the exciton fine-structure splitting and the detection time resolution. We show that the time-energy uncertainty relation provides means to measure a high entanglement even in presence of a finite fine-structure splitting...
journal article 2018
document
Mukhtarova, Anna (author), Redaelli, Luca (author), Hazra, Dibyendu (author), Machhadani, Houssaine (author), Lequien, Stéphane (author), Hofheinz, Max (author), Thomassin, Jean Luc (author), Gustavo, Frederic (author), Zichi, J.R. (author), Zwiller, V.G. (author), Monroy, Eva (author), Gerard, J.A. (author)
Superconducting-nanowire single photon detectors (SNSPDs) are able to reach near-unity detection efficiency in the infrared spectral range. However, due to the intrinsic asymmetry of nanowires, SNSPDs are usually very sensitive to the polarization of the incident radiation, their responsivity being maximum for light polarized parallel to the...
journal article 2018
document
Schweickert, L.S. (author), Jöns, K.D. (author), Zeuner, K.D. (author), Covre Da Silva, Saimon Filipe (author), Huang, Huiying (author), Lettner, Thomas (author), Reindl, Marcus (author), Zichi, J.R. (author), Trotta, Rinaldo (author), Rastelli, Armando (author), Zwiller, V.G. (author)
True on-demand high-repetition-rate single-photon sources are highly sought after for quantum information processing applications. However, any coherently driven two-level quantum system suffers from a finite re-excitation probability under pulsed excitation, causing undesirable multi-photon emission. Here, we present a solid-state source of...
journal article 2018
document
Jöns, K.D. (author), Schweickert, L.S. (author), Versteegh, M.A.M. (author), Dalacu, Dan (author), Poole, Philip J. (author), Gulinatti, Angelo (author), Giudice, Andrea (author), Zwiller, V.G. (author), Reimer, M.E. (author)
Global, secure quantum channels will require efficient distribution of entangled photons. Long distance, low-loss interconnects can only be realized using photons as quantum information carriers. However, a quantum light source combining both high qubit fidelity and on-demand bright emission has proven elusive. Here, we show a bright photonic...
journal article 2017
document
Elshaari, A.W.A. (author), Esmaeil Zadeh, I.Z. (author), Fognini, A.W. (author), Reimer, Michael E. (author), Dalacu, Dan (author), Poole, Philip J. (author), Zwiller, V.G. (author), Jöns, Klaus D. (author)
Quantum light plays a pivotal role in modern science and future photonic applications. Since the advent of integrated quantum nanophotonics different material platforms based on III-V nanostructures-, colour centers-, and nonlinear waveguides as on-chip light sources have been investigated. Each platform has unique advantages and limitations;...
journal article 2017
document
Reimer, M.E. (author), Bulgarini, G. (author), Fognini, A.W. (author), Heeres, R.W. (author), Witek, B.J. (author), Versteegh, M.A.M. (author), Rubino, A. (author), Braun, T. (author), Kamp, M. (author), Höfling, S. (author), Dalacu, D (author), Lapointe, J (author), Poole, Philip J. (author), Zwiller, V.G. (author)
One of the key challenges in developing quantum networks is to generate single photons with high brightness, purity, and long temporal coherence. Semiconductor quantum dots potentially satisfy these requirements; however, due to imperfections in the surrounding material, the coherence generally degrades with increasing excitation power...
journal article 2016
document
Redaelli, L. (author), Bulgarini, G. (author), Dobrovolskiy, S. (author), Dorenbos, S. N. (author), Zwiller, V.G. (author), Monroy, E (author), Gerard, J.A. (author)
In this paper several designs to maximize the absorption efficiency of superconducting-nanowire single-photon detectors are investigated. Using a simple optical cavity consisting of a gold mirror and a SiO<sub>2</sub> layer, the absorption efficiency can be boosted to over 97%: this result is confirmed experimentally by the realization of an...
journal article 2016
document
Esmaeil Zadeh, I.Z. (author), Elshaari, A.W.A. (author), Jöns, K.D. (author), Fognini, A.W. (author), Dalacu, Dan (author), Poole, Philip J. (author), Reimer, Michael E. (author), Zwiller, V.G. (author)
A major step toward fully integrated quantum optics is the deterministic incorporation of high quality single photon sources in on-chip optical circuits. We show a novel hybrid approach in which preselected III-V single quantum dots in nanowires are transferred and integrated in silicon based photonic circuits. The quantum emitters maintain...
journal article 2016
document
Engin, E. (author), Bonneau, D. (author), Natarajan, C.M. (author), Clark, A.S. (author), Tanner, M.G. (author), Hadfield, R.H. (author), Dorenbos, S.N. (author), Zwiller, V.G. (author), Ohira, K. (author), Suzuki, N. (author), Yoshida, H. (author), Iizuka, N. (author), Ezaki, M. (author), O’Brien, J.L. (author), Thompson, M.G. (author)
Photon sources are fundamental components for any quantum photonic technology. The ability to generate high count-rate and low-noise correlated photon pairs via spontaneous parametric down-conversion using bulk crystals has been the cornerstone of modern quantum optics. However, future practical quantum technologies will require a scalable...
journal article 2013
document
Barkelid, K.M. (author), Zwiller, V.G. (author)
Here we present photocurrent measurements on a single suspended carbon nanotube p-n junction. The p-n junction was induced by electrostatic doping by local gates, and the E11 and E22 resonances in the nanotube could be probed using photocurrent spectroscopy. Current-voltage characteristics were recorded, revealing an enhanced optoelectronic...
journal article 2013
document
Dorenbos, S.N. (author), Zwiller, V.G. (author), Schouten, R.N. (author)
Detection arrangement having an array of at least one superconducting single photon detector (SSPD). The detection arrangement further has a cryogenic part (9) with the array of at least one SSPD (1), the cryogenic part (9) being at a superconducting temperature in operation. Also, a separate charge storage element (5) in the form of an...
patent 2011
Searched for: author%3A%22Zwiller%2C+V.G.%22
(1 - 12 of 12)