Polariton devices and quantum fluids

D. Ballarini; M. De Giorgi; G. Lerario; A. Cannavale; E. Cancellieri; A. Bramati; G. Gigli; F. Laussy; D. Sanvitto

doi:10.1117/12.2044416

19 February 2014 Polariton devices and quantum fluids

D. Ballarini, M. De Giorgi, G. Lerario, A. Cannavale, E. Cancellieri, A. Bramati, G. Gigli, F. Laussy, D. Sanvitto

Proceedings Volume 8997, Advances in Photonics of Quantum Computing, Memory, and Communication VII; 89970T (2014) https://doi.org/10.1117/12.2044416
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

Exciton-polaritons, composite particles resulting from the strong coupling between excitons and photons, have shown the capability to undergo condensation into a macroscopically coherent quantum state, demonstrating strong non-linearities and unique propagation properties. These strongly-coupled light-matter particles are promising candidates for the realization of semiconductor all-optical devices with fast time response and small energy consumption. Recently, quantum fluids of polaritons have been used to demonstrate the possibility to implement optical functionalities as spin switches, transistors or memories, but also to provide a channel for the transmission of information inside integrated circuits. In this context, the possibility to extend the range of light-matter interaction up to room temperature becomes of crucial importance. One of the most intriguing promises is to use organic Frenkel excitons, which, thanks to their huge oscillator strength, not only sustain the polariton picture at room temperature, but also bring the system into the unexplored regime of ultra-strong coupling. The combination of these materials with ad-hoc designed structures may allow the control of the propagation properties of polaritons, paving the way towards their implementation of the polariton functionalities in actual devices for opto-electronic applications.

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D. Ballarini, M. De Giorgi, G. Lerario, A. Cannavale, E. Cancellieri, A. Bramati, G. Gigli, F. Laussy, and D. Sanvitto "Polariton devices and quantum fluids", Proc. SPIE 8997, Advances in Photonics of Quantum Computing, Memory, and Communication VII, 89970T (19 February 2014); https://doi.org/10.1117/12.2044416

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KEYWORDS

Polaritons

Excitons

Optical microcavities

Particles

Photons

Semiconductors

Dispersion

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