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polariton
Oscillation-free unconventional photon blockade from quadrature driving of a Kerr dimer
Driving the two sites of a Kerr dimer in quadrature gives unconventional photon blockade with a smooth, oscillation-free g²(τ) that standard detectors can resolve, at weak nonlinearity and without post-fabrication cavity trimming.
Hamid Ohadi
PDF
DOI
Towards deterministic quantum non-linear optics with Cu2O Rydberg polaritons
A Perspective on Cu2O Rydberg exciton-polaritons as a chip-compatible route to deterministic photon-photon interactions, setting out the obstacles to reaching U/γ ≳ 1 and a roadmap toward photon blockade and deterministic gates.
Hamid Ohadi
,
David Petrosyan
,
Matthew P. A. Jones
,
Pavlos G. Savvidis
PDF
Project
DOI
Ultra-small mode volume polariton condensation via precision He+ implantation
Focused He+ ion implantation imprints loss-defined traps directly into GaAs microcavities, confining polariton condensates to a mode volume of only 0.6 μm³ while preserving strong coupling — small enough to support a single condensate mode.
Yannis C. Balas
,
Xiaoqing Zhou
,
Evgeniia Cherotchenko
,
Ivan Kuznetsov
,
Sai Kiran Rajendran
,
Giannis G. Paschos
,
Artur V. Trifonov
,
Anton Nalitov
,
Hamid Ohadi
,
Pavlos G. Savvidis
PDF
Project
DOI
Unveiling asymmetric topological photonic states in anisotropic 2D perovskite microcavities
Anisotropic halide perovskite microcavities enable room-temperature photonic Rashba-Dresselhaus spin-orbit coupling and synthetic gauge fields, leading to unconventional topological states with non-zero Berry curvature.
E. Mavrotsoupakis
,
L. Mouchliadis
,
J. Cao
,
M. Chairetis
,
M. Triantafyllou-Rundell
,
E. Macropulos
,
G. Paschos
,
A. Pantousas
,
H. Liu
,
A. Kavokin
,
H. Ohadi
,
C. Stoumpos
,
P. Savvidis
PDF
Project
DOI
Materials for excitons–polaritons: Exploiting the diversity of semiconductors
Review paper on new perspectices on materials for exciton-polritons
J. Bellessa
,
J. Bloch
,
E. Deleporte
,
V. M. Menon
,
H. S. Nguyen
,
H. Ohadi
,
S. Ravet
,
T. Boulier
PDF
Project
Project
DOI
Local tuning of Rydberg exciton energies in nanofabricated Cu2O pillars
Rydberg excitons in cuprous oxide feature giant optical nonlinearities that may be exploited in quantum applications if suitably confined. Here, the authors show how exciton confinement can be realised by focused-ion-beam etching of Cu2O crystals without noticeable degradation of excitonic properties.
Anindya Sundar Paul
,
Sai Kiran Rajendran
,
David Ziemkiewicz
,
Thomas Volz
,
Hamid Ohaid
PDF
Project
DOI
Nonlinear Rydberg Exciton-Polaritons in Cu2O Microcavities
Observation of a nonlinearity in Rydberg polaritons in Cu2O.
Maxim Makhonin
,
Anthonin Delphan
,
Kok Wee Song
,
Paul Walker
,
Tommi Isoniemi
,
Peter Claronino
,
Konstantinos Orfanakis
,
Sai Kiran Rajendran
,
Hamid Ohadi
,
Julian Heckötter
,
Marc Assmann
,
Manfred Bayer
,
Alexander Tartakovskii
,
Maurice Skolnick
,
Oleksandr Kyriienko
,
Dmitry Krizhanovskii
PDF
Project
DOI
Highly-excited Rydberg excitons in synthetic thin-film cuprous oxide
Synthetic cuprous oxide films have been grown and shown to host Rydberg excitons.
J. DeLange
,
K. Barua
,
A. S. Paul
,
H. Ohadi
,
V. Zwiller
,
S. Steinhauer
,
H. Alaeian
PDF
Project
DOI
Laser writing of parabolic micromirrors with a high numerical aperture for optical trapping and rotation
Laser ablation of micron-size parabolic mirrors on glass, and using it for trapping of particles
T. Plaskocinski
,
Y. Arita
,
G. D. Bruce
,
S. Persheyev
,
K. Dholakia
,
A. Di Falco
,
H. Ohadi
PDF
Project
Project
DOI
Optically trapped room temperature polariton condensate in an organic semiconductor
Observation of a quantised oscillating nonlinear quantum fluid in 1D and 2D potentials in an organic microcavity at room temperature, achieved by an on-the-fly fully tuneable optical approach.
Mengjie Wei
,
Wouter Verstraelen
,
Konstantinos Orfanakis
,
Arvydas Ruseckas
,
Timothy C. H. Liew
,
Ifor D.W. Samuel
,
Graham A. Turnbull
,
Hamid Ohadi
PDF
Project
Project
DOI
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