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Integrated photonic circuits are key components for photonic quantum technologies and for the implementation of chip-based quantum devices. Future applications demand flexible architectures to overcome common limitations of many current…

We report highly efficient single photon generation from InGaAs self-assembled quantum dots emitting within a two-dimensional photonic bandgap. A strongly suppressed multiphoton probability is obtained for single quantum dots in bulk GaAs…

Materials Science · Physics 2009-11-13 M. Kaniber , A. Laucht , T. Huerlimann , M. Bichler , R. Meyer , M. -C. Amann , J. J. Finley

We report on the theoretical investigation of photonic crystal cavities etched on a suspended membrane for the generation of polarization entangled photon pairs using the biexciton cascade in a single quantum dot. The implementation of…

Quantum Physics · Physics 2009-11-13 Matthieu Larqué , Timothy Karle , Isabelle Robert-Philip , Alexios Beveratos

We present the realization of a cavity quantum electrodynamics setup in which photons of strongly different lifetimes are engineered in different harmonic modes of the same cavity. We achieve this in a superconducting transmission line…

Mesoscale and Nanoscale Physics · Physics 2010-04-06 P. J. Leek , M. Baur , J. M. Fink , R. Bianchetti , L. Steffen , S. Filipp , A. Wallraff

We propose a quantum simulation of a two-level atom coupled to a single mode of the electromagnetic field in the ultrastrong-coupling regime based upon resonant Raman transitions in an atom interacting with a high finesse optical cavity…

Quantum Physics · Physics 2014-08-27 Arne L. Grimsmo , Scott Parkins

Electromagnetic resonators are a versatile platform to harvest, filter and trap electromagnetic energy, at the basis of many applications from microwaves to optics. Resonators with a large intrinsic quality factor (Q) are highly desirable…

Optics · Physics 2020-02-04 Younes Radi , Alex Krasnok , Andrea Alú

We investigate the stimulated emission of superradiant atoms coupled to a waveguide induced by a coherent-state photon pulse. We provide an analytical result when a short $\pi$ pulse is incident, which shows that the atoms emit photons…

Quantum Physics · Physics 2022-03-15 Rui Asaoka , Julio Gea-Banacloche , Yuuki Tokunaga , Kazuki Koshino

We report on multi-photon statistics of correlated twin beams produced in a periodic poled micro-ring resonator on thin-film lithium niobate. Owing to high cavity confinement and near perfect quasi-phase matching, the photons pairs are…

Quantum Physics · Physics 2023-09-28 Zhaohui Ma , Jia-Yang Chen , Malvika Garikapati , Zhan Li , Chao Tang , Yong Meng Sua , Yu-Ping Huang

We report the efficient coherent photon scattering from a semiconductor quantum dot embedded in a pillar microcavity. We show that a surface acoustic wave can periodically modulate the energy levels of the quantum dot, but has a negligible…

Semiconductor quantum dots (QDs) have potential applications in quantum information processing due to the fact that they are potential on-demand sources of single and entangled photons. Generation of polarization-entangled photon pairs was…

Quantum Physics · Physics 2015-04-29 E. R. Schmidgall , I. Schwartz , L. Gantz , D. Cogan , S. Raindel , D. Gershoni

Precise positioning of single site-controlled inverted pyramidal InGaAs QD at the antinode of a GaAs photonic crystal cavity with nanometer-scale accuracy holds unique advantages compared to self-assembled QDs and offers great promise for…

Mesoscale and Nanoscale Physics · Physics 2025-02-13 Jiahui Huang , Wei Liu , Xiang Cheng , Alessio Miranda , Benjamin Dwir , Alok Rudra , Eli Kapon , Chee Wei Wong

The generation of photon pairs in single quantum dots is based on a process that is, in its nature, deterministic. However, an efficient extraction of these photon pairs from a high-index semiconductor host material requires engineering of…

We demonstrate off-resonant coupling between a single quantum dot and a nanobeam photonic crystal cavity, under resonant excitation of the quantum dot or the cavity. These results are consistent with previous descriptions of off-resonant…

Mesoscale and Nanoscale Physics · Physics 2011-12-22 Armand Rundquist , Arka Majumdar , Jelena Vuckovic

We use a recently proposed quantum electrodynamical density functional theory (QEDFT) functional in a real-time excitation calculation for a two-dimensional electron gas in a square array of quantum dots in an external constant…

Mesoscale and Nanoscale Physics · Physics 2023-10-09 Vidar Gudmundsson , Vram Mughnetsyan , Nzar Rauf Abdullah , Chi-Shung Tang , Valeriu Moldoveanu , Andrei Manolescu

Incoherent pumping in quantum dots (QDs) can create a biexciton state through two paths: via the formation of bright or dark exciton states. The latter, dark-pumping, path is shown to enhance the probability of two-photon simultaneous…

Mesoscale and Nanoscale Physics · Physics 2014-10-08 Kenji Kamide , Satoshi Iwamoto , Yasuhiko Arakawa

We present a non-invasive, resonant cavity based approach to beam emittance measurement of a shot-to-shot non-circular beam pulse of multi-bunches. In a resonant cavity, desired field components can be enhanced up to Q_L_lambda/pi, where…

Accelerator Physics · Physics 2008-11-26 J. S. Kim , C. D. Nantista , D. H. Whittum , R. H. Miller , S. G. Tantawi , A. W. Weidemann

Cavities embedded in photonic crystal waveguides offer a promising route towards large scale integration of coupled resonators for quantum electrodynamics applications. In this letter, we demonstrate a strongly coupled system formed by a…

Quantum Physics · Physics 2015-05-18 F. S. F. Brossard , X. L. Xu , D. A. Williams , M. Hadjipanayi , M. Hopkinson , X. Wang , R. A. Taylor

We study the emission from a molecular photonic cavity formed by two proximal photonic crystal defect cavities containing a small number (<3) of In(Ga)As quantum dots. Under strong excitation we observe photoluminescence from the bonding…

We report on the efficient generation of single photons, making use of spontaneous Raman scattering in a single trapped ion. The photons are collected through in-vacuum high-NA objectives. Photon frequency, polarization and temporal shape…

Quantum Physics · Physics 2013-05-13 Christoph Kurz , Jan Huwer , Michael Schug , Philipp Müller , Jürgen Eschner

We theoretically demonstrate the enhanced and dephasing immune squeezing in the resonance fluorescence of a single quantum dot (QD) confined to a pillar-microcavity and driven by a continuous wave laser. We employ a formalism based on…

Quantum Physics · Physics 2020-10-28 Parvendra Kumar , Agnikumar G. Vedeshwar
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