Article
Physics, Multidisciplinary
Martin Hayhurst Appel, Alexey Tiranov, Simon Pabst, Ming Lai Chan, Christian Starup, Ying Wang, Leonardo Midolo, Konstantin Tiurev, Sven Scholz, Andreas D. Wieck, Arne Ludwig, Anders Sondberg Sorensen, Peter Lodahl
Summary: This Letter demonstrates a scalable source of time-bin encoded Greenberger-Horne-Zeilinger and linear cluster states from a solid-state quantum dot embedded in a nanophotonic crystal waveguide. A self-stabilizing double-pass interferometer is utilized to measure a spin-photon Bell state with high fidelity. The strict resonant excitation enables high photon indistinguishability, conducive to scaling up the technology and producing more general graph states.
PHYSICAL REVIEW LETTERS
(2022)
Article
Optics
A. Deabreu, C. Bowness, A. Alizadeh, C. Chartrand, N. A. Brunelle, E. R. MacQuarrie, N. r. Lee-Hone, M. Ruether, M. Kazemi, A. T. K. Kurkjian, S. Roorda, N. V. Abrosimov, H. -j. Pohl, M. L. W. Thewalt, D. B. Higginbottom, S. Simmons
Summary: The performance of modular, networked quantum technologies relies on the quality of their quantum light-matter interconnects. Silicon defects, particularly T centers, offer advantages for quantum networking and distributed quantum computing. In this study, we demonstrate the integration of T center spin ensembles in single-mode waveguides in silicon-on-insulator (SOI) photonic chips and characterize their optical properties. The results show that these waveguide-integrated emitters have narrow linewidths, supporting the potential success of remote spin-entangling protocols in the future.
Article
Chemistry, Multidisciplinary
Minho Choi, Mireu Lee, Sung-Yul L. Park, Byung Su Kim, Seongmoon Jun, Suk In Park, Jin Dong Song, Young-Ho Ko, Yong-Hoon Cho
Summary: In this study, a method is proposed to deterministically integrate single quantum dots with tailor-made photonic structures. A nondestructive luminescence picking method called nanoscale-focus pinspot (NFP) is used to reduce the luminous quantum dot density. The selected quantum dot is then deterministically integrated with a tailor-made photonic structure, leading to improved extraction efficiency.
ADVANCED MATERIALS
(2023)
Article
Physics, Multidisciplinary
Alisa Javadi, Natasha Tomm, Nadia O. Antoniadis, Alistair J. Brash, Rudiger Schott, Sascha R. Valentin, Andreas D. Wieck, Arne Ludwig, Richard J. Warburton
Summary: This study investigates a scheme in which a single emitter, a semiconductor quantum dot, is embedded in a microcavity to generate single photons. By exploiting the splitting of the cavity mode, one for excitation and the other for collection, the best population inversion is achieved with a detuned laser pulse. The Rabi oscillations exhibit an unusual dependence on pulse power, attributed to the non-trivial effect of phonons on the exciton dynamics.
NEW JOURNAL OF PHYSICS
(2023)
Article
Quantum Science & Technology
Guo-An Yan, Dong-shan He, Hua Lu
Summary: This study theoretically investigates the single-photon scattering properties in a one-dimensional waveguide coupled to a cavity and a two-level atom. Two cases are considered: when the waveguide is coupled to the cavity-emitter and when it is coupled to both a cavity and a two-level atom. In our system, the phase of the emitter-cavity-waveguide coupling strength acts as a sensitive controller, allowing for control of perfect transmission, perfect reflection, and adjustment of transmission spectrum.
QUANTUM INFORMATION PROCESSING
(2023)
Article
Optics
Vineet Kumar Shukla, Joyee Ghosh
Summary: The paper proposes a method to generate all four polarization-entangled Bell states using a waveguide device, achieved through non-degenerate downconversion and special poling. The joint spectral amplitude of the photon pairs is studied for frequency correlation properties, providing a new resource for quantum information applications.
Article
Physics, Multidisciplinary
Alan C. Santos, R. Bachelard
Summary: In this Letter, we demonstrate the efficient generation of entanglement between two artificial giant atoms using photon-mediated interactions in a waveguide. By taking advantage of adjustable decay processes and interference processes, the spontaneous sudden birth of entanglement is significantly enhanced with giant atoms. Highly entangled states can also be generated in the steady-state regime by driving the system with a resonant classical field. We propose using the emitted light statistics as a witness of entanglement, with giant photon bunching observed near maximal entanglement regime. These results pave the way for generating quantum correlations and manipulating photon statistics in systems of giant atoms.
PHYSICAL REVIEW LETTERS
(2023)
Article
Quantum Science & Technology
Xiaoyan Zhou, Peter Lodahl, Leonardo Midolo
Summary: In this paper, a novel dual-mode photonic-crystal waveguide is proposed for stable and scalable resonant excitation of high-quality quantum dot single-photon sources. Through proper engineering of the photonic bandstructure, efficient collection of highly indistinguishable single photons is achieved over a broad spectral and spatial range.
QUANTUM SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Namyoung Ahn, Young-Shin Park, Clement Livache, Jun Du, Kivanc Gungor, Jaehoon Kim, Victor I. Klimov
Summary: Laser diodes based on solution-processable materials have immense potential in various technologies. However, there have been challenges in achieving QD laser diodes, including rapid nonradiative decay and device degradation. In this study, we overcome these challenges and demonstrate optically excited lasing from fully functional high-current density electroluminescent devices.
ADVANCED MATERIALS
(2023)
Article
Quantum Science & Technology
Uesli Alushi, Tomas Ramos, Juan Jose Garcia-Ripoll, Roberto Di Candia, Simone Felicetti
Summary: The article investigates quadratic light-matter interactions in a waveguide QED system. The authors develop a general scattering theory and discuss paradigmatic examples, revealing fundamental differences with conventional waveguide QED systems.
Article
Chemistry, Multidisciplinary
Harjot Singh, Demitry Farfurnik, Zhouchen Luo, Allan S. Bracker, Samuel G. Carter, Edo Waks
Summary: This study demonstrates the coupling of an InAs/GaAs quantum dot to a fabricated bullseye cavity with a high cooperativity, providing nearly degenerate and Gaussian polarization modes for efficient optical accessing. The researchers observed extremely short spontaneous emission lifetimes of the quantum dot and approximately 80% transparency of light reflected from the cavity. Utilizing induced transparency for photon switching and coherent control of the quantum dot spin could contribute to the establishment of quantum networks.
Article
Nanoscience & Nanotechnology
Carlos Errando-Herranz, Eva Schoell, Raphael Picard, Micaela Laini, Samuel Gyger, Ali W. Elshaari, Art Branny, Ulrika Wennberg, Sebastien Barbat, Thibaut Renaud, Marc Sartison, Mauro Brotons-Gisbert, Cristian Bonato, Brian D. Gerardot, Val Zwiller, Klaus D. Joens
Summary: Efficient on-chip integration of single-photon emitters is crucial for the application of photonic integrated circuits in quantum technologies; current approaches are limited, while two-dimensional semiconductors offer scalability; a scalable approach using a silicon nitride photonic waveguide has enabled strain-localization and coupling of single-photon emitters.
Article
Physics, Applied
Ramachandrarao Yalla, K. Muhammed Shafi, Kali P. Nayak, Kohzo Hakuta
Summary: In this study, we demonstrate the creation of a one-sided cavity on an optical nanofiber using a composite method. The one-sided composite cavity is designed to enhance channeling efficiency and its coupling characteristics are validated through numerical simulations and experiments.
APPLIED PHYSICS LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Lukasz Dusanowski, Dominik Koeck, Christian Schneider, Sven Hoefling
Summary: Scalable quantum photonic technologies require the low-loss integration of many identical single-photon sources with photonic circuitry on a chip. Quantum emitter-based single-photon sources are free of the limitations imposed by parametric down-conversion, but the frequency matching of multiple emitters within a single circuit remains challenging. In this work, a fully monolithic GaAs circuit combining two frequency-matched quantum dot single-photon sources interconnected with a low-loss on-chip beamsplitter via single-mode ridge waveguides is demonstrated. This device enabled a two-photon interference experiment on-chip with a visibility reaching 66%, indicating the potential for increasing the complexity of quantum circuits towards fully scalable integrated quantum technologies.
Article
Chemistry, Analytical
Shenghua Li, Lingyu Xiao, Longqian Xiao, Hongliang Tan
Summary: This study demonstrated the potential of coordination polymers (CPs) as hosts for integrating multiple guest species into a fluorescence resonance energy transfer (FRET) nanoprobe. The researchers developed CD/PR@ZnCPs by integrating carbon dot (CD) and phenol red (PR) into ZnCPs constructed from zinc(II) and adenine. The confinement effect of ZnCPs brought CD and PR close together, allowing the FRET process from CD to PR, resulting in the quenching of CD fluorescence. The FRET process was disrupted in alkaline medium, switching on the fluorescence of CD/PR@ZnCPs. Based on this finding, a turn-on fluorescent method for detecting urease activity was established.
Article
Optics
Kevin A. Twedt, Jie Zou, Marcelo Davanco, Kartik Srinivasan, Jabez J. McClelland, Vladimir A. Aksyuk
Article
Microbiology
Marcelo Gomes Davanco, Michel Leandro Campos, Talita Atanazio Rosa, Elias Carvalho Padilha, Alejandro Henao Alzate, Larissa Araujo Rolim, Pedro Jose Rolim-Neto, Rosangela Goncalves Peccininia
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
(2016)
Article
Optics
Qing Li, Marcelo Davanco, Kartik Srinivasan
Article
Engineering, Electrical & Electronic
Yi-Chen Shuai, Deyin Zhao, Yonghao Liu, Corey Stambaugh, John Lawall, Weidong Zhou
IEEE PHOTONICS JOURNAL
(2017)
Article
Multidisciplinary Sciences
Marcelo Davanco, Jin Liu, Luca Sapienza, Chen-Zhao Zhang, Jose Vinicius De Miranda Cardoso, Varun Verma, Richard Mirin, Sae Woo Nam, Liu Liu, Kartik Srinivasan
NATURE COMMUNICATIONS
(2017)
Article
Physics, Applied
Krishna C. Balram, Marcelo I. Davanco, B. Robert Ilic, Ji-Hoon Kyhm, Jin Dong Song, Kartik Srinivasan
PHYSICAL REVIEW APPLIED
(2017)
Article
Optics
Yu-Ming He, Jin Liu, Sebastian Maier, Monika Emmerling, Stefan Gerhardt, Marcelo Davanco, Kartik Srinivasan, Christian Schneider, Sven Hoefling
Article
Chemistry, Multidisciplinary
Lisa V. Brown, Marcelo Davanco, Zhiyuan Sun, Andrey Kretinin, Yiguo Chen, Joseph R. Matson, Igor Vurgaftman, Nicholas Sharac, Alexander J. Giles, Michael M. Fogler, Takashi Taniguchi, Kenji Watanabe, Kostya S. Novoselov, Stefan A. Maier, Andrea Centrone, Joshua D. Caldwell
Article
Physics, Applied
Jin Liu, Kumarasiri Konthasinghe, Marcelo Davanco, John Lawall, Vikas Anant, Varun Verma, Richard Mirin, Sae Woo Nam, Jin Dong Song, Ben Ma, Ze Sheng Chen, Hai Qiao Ni, Zhi Chuan Niu, Kartik Srinivasan
PHYSICAL REVIEW APPLIED
(2018)
Article
Chemistry, Multidisciplinary
Peter Schnauber, Anshuman Singh, Johannes Schall, Suk In Park, Jin Dong Song, Sven Rodt, Kartik Srinivasan, Stephan Reitzenstein, Marcelo Davanco
Article
Biochemistry & Molecular Biology
Chaokun Wang, Yichen Shuai, Chuan Zhao, Fengrui Yang, Weilian Su, Zhifen Ning, Guoxia Li
Summary: The study revealed that miR-10a and miR-10b play a role in the development of renal fibrosis by regulating PTEN and the Akt pathway to promote the EMT process.
CURRENT ISSUES IN MOLECULAR BIOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Muzhou Wang, James M. Marr, Marcelo Davanco, Jeffrey W. Gilman, J. Alexander Liddle
MATERIALS HORIZONS
(2019)
Proceedings Paper
Engineering, Electrical & Electronic
Marcelo Davanco
2018 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC)
(2018)