Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Williams, Robin L."'
Autor:
Wakileh, Andrew N., Yu, Lingxi, Dokuz, Doğa, Haffouz, Sofiane, Wu, Xiaohua, Lapointe, Jean, Northeast, David B., Williams, Robin L., Rotenberg, Nir, Poole, Philip J., Dalacu, Dan
Single photon sources operating on-demand at telecom wavelengths are required in fiber-based quantum secure communication technologies. In this work we demonstrate single photon emission from position-controlled nanowire quantum dots emitting at {\la
Externí odkaz:
http://arxiv.org/abs/2309.13381
Autor:
Yeung, Edith, Northeast, David B., Jin, Jeongwan, Laferrière, Patrick, Korkusinski, Marek, Poole, Philip J., Williams, Robin L., Dalacu, Dan
We demonstrate on-chip generation of indistinguishable photons based on a nanowire quantum dot. From a growth substrate containing arrays of positioned-controlled single dot nanowires, we select a single nanowire which is placed on a SiN waveguide fa
Externí odkaz:
http://arxiv.org/abs/2308.10215
Autor:
Laferrière, Patrick, Haffouz, Sofiane, Northeast, David B., Poole, Philip J., Williams, Robin L., Dalacu, Dan
Publikováno v:
Nano Lett. 23 (2023) 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:
http://arxiv.org/abs/2210.12833
Autor:
Laferrière, Patrick, Yin, Aria, Yeung, Edith, Kusmic, Leila, Korkusinski, Marek, Rasekh, Payman, Northeast, David B., Haffouz, Sofiane, Lapointe, Jean, Poole, Philip J., Williams, Robin L., Dalacu, Dan
Publikováno v:
Phys. Rev. B 107, (2023) 15522
We demonstrate that, even when employing above-band excitation, photons emitted from semiconductor quantum dots can have linewidths that approach their transform-limited values. This is accomplished by using quantum dots embedded in bottom-up photoni
Externí odkaz:
http://arxiv.org/abs/2208.00066
Autor:
Laferrière, Patrick, Yeung, Edith, Miron, Isabelle, Northeast, David B., Haffouz, Sofiane, Lapointe, Jean, Korkusinski, Marek, Poole, Philip J., Williams, Robin L., Dalacu, Dan
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, we produ
Externí odkaz:
http://arxiv.org/abs/2110.08366
Autor:
Northeast, David B., Weber, John F., Dalacu, Dan, Phoenix, Jason, Poole, Philip J., Aers, Geof, Lapointe, Jean, Williams, Robin L.
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 the tip of
Externí odkaz:
http://arxiv.org/abs/2104.11197
Autor:
Phoenix, Jason, Korkusinski, Marek, Dalacu, Dan, Poole, Philip J., Zawadzki, Piotr, Studenikin, Sergei, Williams, Robin L., Sachrajda, Andrew S., Gaudreau, Louis
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 optically at m
Externí odkaz:
http://arxiv.org/abs/2103.07819
Autor:
Chaiwongkhot, Poompong, Hosseini, Sara, Ahmadi, Arash, Higgins, Brendon L., Dalacu, Dan, Poole, Philip J., Williams, Robin L., Reimer, Michael E., Jennewein, Thomas
Global quantum secure communication can be achieved using quantum key distribution (QKD) with orbiting satellites. Established techniques use attenuated lasers as weak coherent pulse (WCP) sources, with so-called decoy-state protocols, to generate th
Externí odkaz:
http://arxiv.org/abs/2009.11818
Autor:
Mnaymneh, Khaled, Dalacu, Dan, McKee, Joseph, Lapointe, Jean, Haffouz, Sofiane, Poole, Philip J., Aers, Geof C., Williams, Robin L.
We demonstrate a method to monolithically integrate nanowire-based quantum dot single photon sources on-chip using evanescent coupling. By deterministically placing an appropriately tapered III-V nanowire waveguide, containing a single quantum dot, o
Externí odkaz:
http://arxiv.org/abs/1901.00469
Autor:
Carlson, Chelsea, Dalacu, Dan, Gustin, Chris, Haffouz, Sofiane, Wu, Xiaohua, Lapointe, Jean, Williams, Robin L., Poole, Philip J., Hughes, Stephen
Publikováno v:
Phys. Rev. B 99, 085311 (2019)
We present a quantum optics theory, numerical calculations, and experiments on coupled quantumdots in semiconductor nanowire waveguides. We first present an analytical Green function theory tocompute the emitted spectra of two coupled quantum dots, t
Externí odkaz:
http://arxiv.org/abs/1810.04130