Publication

Optical pattern formation in self-focusing and self-defocusing diffractively thick media
Physical Review A 111, (2025)
Cold atomic clouds constitute highly resonant nonlinear optical media, whose refractive index can easily be tuned via the light …
G. Labeyrie, I. Krešić, R. Kaiser, T. Ackemann
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Optimizing spin polarization in quantum dot vertical-gain structures through pump wavelength selection
Applied Physics Letters 126, (2025)
Spintronic applications require an efficient injection of spin-polarized carriers. We study the maximally achievable spin polarization …
N. Alhosiny, S. S. Alharthi, J. Doogan, E. Clarke, T. Ackemann
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Mode-locked waveguide polariton laser
Optica 11, 962–970 (2024)
So far, exciton-polariton (polariton) lasers were mostly single-mode lasers based on microcavities. Despite the large repulsive …
H. Souissi, M. Gromovyi, I. Septembre, V. Develay, C. Brimont, L. Doyennette, E. Cambril, S. Bouchoule, B. Alloing, E. Frayssinet, J. Zúñiga-Pérez, T. Ackemann, G. Malpuech, D. D. Solnyshkov, T. Guillet
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Spontaneously sliding multipole spin density waves in cold atoms
Physical Review Letters 132, (2024)
We report on the observation of spontaneously drifting coupled spin and quadrupolar density waves in the ground state of laser driven …
G. Labeyrie, J. Walker, G. Robb, R. Kaiser, T. Ackemann
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Quantum enhanced SU(1,1) matter-wave interferometry in a ring cavity
Physical Review A 108, (2023)
Quantum squeezed states offer metrological enhancement as compared to their classical counterparts. Here, we devise and numerically …
I. Krešić, T. Ackemann
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Quantum entanglement via self-organization of ultracold atoms in a ring cavity
(2023)
G. Oppo, I. Krešić, G. Robb, T. Ackemann
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Vector vortex solitons and soliton control in vertical-cavity surface-emitting lasers
238, (2022)
The properties of vector vortex beams in vertical-cavity-surface emitting lasers with frequency-selective feedback is investigated. …
T. Ackemann, T. Guillet, H. Pulham, G. Oppo
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Self-Organization in Cold Atoms Mediated by Diffractive Coupling
Atoms 9, 35 (2021)
This article discusses self-organization in cold atoms via light-mediated interactions induced by feedback from a single …
T. Ackemann, G. Labeyrie, G. Baio, I. Krešić, J. G. M. Walker, A. Costa Boquete, P. Griffin, W. J. Firth, R. Kaiser, G. Oppo, G. R. M. Robb
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Multiple Self-Organized Phases and Spatial Solitons in Cold Atoms Mediated by Optical Feedback
Physical Review Letters 126, 203201 (2021)
We study the transverse self-structuring of cold atomic clouds with effective atomic interactions mediated by a coherent driving beam …
G. Baio, G. R. M. Robb, A. M. Yao, G. Oppo, T. Ackemann
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Magnetic phase diagram of light-mediated spin structuring in cold atoms
Optica 5, 1322 (2018)
G. Labeyrie, I. Krešić, G. R. M. Robb, G. Oppo, R. Kaiser, T. Ackemann
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