Publications (28)
Small slot waveguide rings for on-chip quantum optical circuits
Nir Rotenberg, Pierre Tuerschmann, Harald Haakh +3
Nanophotonic interfaces between single emitters and light promise to enable new quantum optical technologies. Here, we use a combination of finite element simulations and analytic…
Large-Scale Tree-Type Photonic Cluster State Generation with Recurrent Quantum Photonic Neural Networks
Jacob Ewaniuk, Bhavin J. Shastri, Nir Rotenberg
Large, multi-dimensional clusters of entangled photons are among the most powerful resources for emerging quantum technologies, as they are predicted to enable global quantum netwo…
Directional telecom photons from a chirally coupled quantum dot
Kristina Bodiroga, Jacob Ewaniuk, Andrew N. Wakileh +8
Chiral quantum light-matter interfaces, where the internal spin state of a quantum emitter determines the direction in which it emits, are essential building blocks of non-reciproc…
Realistic quantum photonic neural networks
Jacob Ewaniuk, Jacques Carolan, Bhavin J. Shastri +1
Quantum photonic neural networks are variational photonic circuits that can be trained to implement high-fidelity quantum operations. However, work-to-date has assumed idealized co…
On-chip linear and nonlinear control of single molecules coupled to a nanoguide
Pierre Türschmann, Nir Rotenberg, Jan Renger +5
While experiments with one or two quantum emitters have become routine in various laboratories, scalable platforms for efficient optical coupling of many quantum systems remain elu…
Direct observation of non-linear optical phase shift induced by a single quantum emitter in a waveguide
Mathias J. R. Staunstrup, Alexey Tiranov, Ying Wang +7
Realizing a sensitive photon-number-dependent phase shift on a light beam is required both in classical and quantum photonics. It may lead to new applications for classical and qua…
Optimizing the chiral Purcell factor for unidirectional single photon emitters in topological photonic crystal waveguides using inverse design
Eric Nussbaum, Nir Rotenberg, Stephen Hughes
We present an inverse design approach to significantly improve the figures-of-merit for chiral photon elements and quantum emitters in topological photonic crystal slab waveguides.…
Reducing Disorder-Induced Backscattering in Photonic Crystal Waveguides through Inverse Design
Dominic Thompson, Antonia Neill, Nir Rotenberg +1
Photonic crystal waveguides (PCWs) allow for the engineering of photonic modes and band structures to control the flow of light and light-matter interactions within the waveguide.…
Quantum photonic neural networks in time
Ivanna M. Boras Vazquez, Jacob Ewaniuk, Nir Rotenberg
We introduce the architecture and timing algorithm to realize a time-bin-encoded quantum photonic neural network (QPNN): a reconfigurable nonlinear photonic circuit inspired by the…
Coherent nonlinear optics of quantum emitters in nanophotonic waveguides
Pierre Türschmann, Hanna Le Jeannic, Signe F. Simonsen +5
Coherent quantum optics, where the interaction of a photon with an emitter does not scramble phase coherence, lies at the heart of many quantum optical effects and emerging technol…
Hybrid Quantum-Classical Photonic Neural Networks
Tristan Austin, Simon Bilodeau, Andrew Hayman +2
Neuromorphic (brain-inspired) photonics leverages photonic chips to accelerate artificial intelligence, offering high-speed and energy efficient solutions in RF communication, tens…
Deterministic positioning of nanophotonic waveguides around single self-assembled quantum dots
Tommaso Pregnolato, Xiao-Liu Chu, Tim Schröder +5
The capability to embed self-assembled quantum dots (QDs) at predefined positions in nanophotonic structures is key to the development of complex quantum photonic architectures. He…
Sub-radiant states for imperfect quantum emitters coupled by a nanophotonic waveguide
Xiao-Liu Chu, Vasiliki Angelopoulou, Peter Lodahl +1
Coherent interactions between quantum emitters in tailored photonic structures is a fundamental building block for future quantum technologies, but remains challenging to observe i…
Ultrafast tuneable optical delay line based on indirect photonic transitions
Daryl M. Beggs, Isabella H. Rey, Tobias Kampfrath +3
We introduce the concept of an indirect photonic transition and demonstrate its use in a dynamic delay line to alter the group velocity of an optical pulse. Operating on an ultrafa…
Photonic Ising machines toward and beyond a million spins
A. Aadhi, Nayem Al-Kayed, Tristan Austin +8
The paper reviews the state of photonic Ising machines, highlighting scalability, connectivity, and reconfigurability challenges, and outlines advances needed to build systems with…
Inverse designed photonic crystal waveguides for pulsed operation: dispersion, losses, and controlled light-matter interactions
Dominic Thompson, Stephen Hughes, Nir Rotenberg
Photonic crystal waveguides (PCWs) are a powerful platform for optical technologies because they can spatially confine light on sub-wavelength scales and manipulate the group veloc…
Experimental reconstruction of the few-photon nonlinear scattering matrix from a single quantum dot in a nanophotonic waveguide
Hanna Le Jeannic, Tomás Ramos, Signe F. Simonsen +8
Coherent photon-emitter interfaces offer a way to mediate efficient nonlinear photon-photon interactions, much needed for quantum information processing. Here we experimentally stu…
Dynamical photon-photon interaction mediated by a quantum emitter
Hanna Le Jeannic, Alexey Tiranov, Jacques Carolan +11
Single photons constitute a main platform in quantum science and technology: they carry quantum information over extended distances in the future quantum internet and can be manipu…
Chiral quantum optics in broken-symmetry and topological photonic crystal waveguides
Nils Hauff, Stephen Hughes, Hanna Le Jeannic +2
On-chip chiral quantum light-matter interfaces, which support directional interactions, provide a promising platform for efficient spin-photon coupling, non-reciprocal photonic ele…
An integrated whispering-gallery-mode resonator for solid-state coherent quantum photonics
Arianne Brooks, Xiao-Liu Chu, Zhe Liu +6
Tailored photonic cavities allow enhancing light-matter interaction ultimately to create a fully coherent quantum interface. Here, we report on an integrated microdisk cavity conta…
Reconfigurable quantum photonic circuits based on quantum dots
Adam McCaw, Jacob Ewaniuk, Bhavin J. Shastri +1
Quantum photonic integrated circuits, composed of linear-optical elements, offer an efficient way for encoding and processing quantum information on-chip. At their core, these circ…
Independent electrical control of two quantum dots coupled through a photonic-crystal waveguide
Xiao-Liu Chu, Camille Papon, Nikolai Bart +5
Efficient light-matter interaction at the single-photon level is of fundamental importance in emerging photonic quantum technology. A fundamental challenge is addressing multiple q…
Roadmap on Neuromorphic Photonics
Daniel Brunner, Bhavin J. Shastri, Mohammed A. Al Qadasi +147
This roadmap consolidates recent advances while exploring emerging applications, reflecting the remarkable diversity of hardware platforms, neuromorphic concepts, and implementatio…
Lifetimes and quantum efficiencies of quantum dots deterministically positioned in photonic-crystal waveguides
Xiao-Liu Chu, Tommaso Pregnolato, Rüdiger Schott +4
Interfacing single emitters and photonic nanostructures enables modifying their emission properties, such as enhancing individual decay rates or controlling the emission direction.…
Chiral emission into nanophotonic resonators
Diego MartÃn-Cano, Harald R. Haakh, Nir Rotenberg
Chiral emission, where the handedness of a transition dipole determines the direction in which a photon is emitted, has recently been observed from atoms and quantum dots coupled t…
Approaching transform-limited linewidths in telecom-wavelength transitions of ungated quantum dots
Andrew N. Wakileh, Dan Dalacu, Philip J. Poole +4
Highly coherent quantum emitters operating in the telecommunication C-band (1530 - 1565nm), where ultra-low-loss fibers and photonic circuits are available, are crucial to the deve…
On-demand single photon emission in the telecom C-band from nanowire-based quantum dots
Andrew N. Wakileh, Lingxi Yu, DoÄa Dokuz +8
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 em…
Quantum optics with near lifetime-limited quantum-dot transitions in a nanophotonic waveguide
Henri Thyrrestrup, Gabija KirÅ¡anskÄ, Hanna Le Jeannic +13
Establishing a highly efficient photon-emitter interface where the intrinsic linewidth broadening is limited solely by spontaneous emission is a key step in quantum optics. It open…