All-optical phase modulation in a cavity-polariton Mach–Zehnder interferometer

C. Sturm, D. Tanese, H.S. Nguyen, H. Flayac, E. Galopin, A. Lemaître, I. Sagnes, D. Solnyshkov, A. Amo, G. Malpuech and J. Bloch ()
Additional contact information
C. Sturm: Laboratoire de Photonique et de Nanostructures, LPN/CNRS, Route de Nozay
D. Tanese: Laboratoire de Photonique et de Nanostructures, LPN/CNRS, Route de Nozay
H.S. Nguyen: Laboratoire de Photonique et de Nanostructures, LPN/CNRS, Route de Nozay
H. Flayac: Institut Pascal, PHOTON-N2, Clermont Université, Université Blaise Pascal, CNRS, 24 avenue des Landais
E. Galopin: Laboratoire de Photonique et de Nanostructures, LPN/CNRS, Route de Nozay
A. Lemaître: Laboratoire de Photonique et de Nanostructures, LPN/CNRS, Route de Nozay
I. Sagnes: Laboratoire de Photonique et de Nanostructures, LPN/CNRS, Route de Nozay
D. Solnyshkov: Institut Pascal, PHOTON-N2, Clermont Université, Université Blaise Pascal, CNRS, 24 avenue des Landais
A. Amo: Laboratoire de Photonique et de Nanostructures, LPN/CNRS, Route de Nozay
G. Malpuech: Institut Pascal, PHOTON-N2, Clermont Université, Université Blaise Pascal, CNRS, 24 avenue des Landais
J. Bloch: Laboratoire de Photonique et de Nanostructures, LPN/CNRS, Route de Nozay

Nature Communications, 2014, vol. 5, issue 1, 1-7

Abstract: Abstract Quantum fluids based on light is a highly developing research field, since they provide a nonlinear platform for developing optical functionalities and quantum simulators. An important issue in this context is the ability to coherently control the properties of the fluid. Here we propose an all-optical approach for controlling the phase of a flow of cavity-polaritons, making use of their strong interactions with localized excitons. Here we illustrate the potential of this method by implementing a compact exciton–polariton interferometer, which output intensity and polarization can be optically controlled. This interferometer is cascadable with already reported polariton devices and is promising for future polaritonic quantum optic experiments. Complex phase patterns could be also engineered using this optical method, providing a key tool to build photonic artificial gauge fields.

Date: 2014
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DOI: 10.1038/ncomms4278

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