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Proceedings Paper

Bose-Einstein condensation of photons in a microscopic optical resonator: towards photonic lattices and coupled cavities
Author(s): Jan Klaers; Julian Schmitt; Tobias Damm; David Dung; Frank Vewinger; Martin Weitz
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Paper Abstract

Bose-Einstein condensation has in the last two decades been observed in cold atomic gases and in solid-state physics quasiparticles, exciton-polaritons and magnons, respectively. The perhaps most widely known example of a bosonic gas, photons in blackbody radiation, however exhibits no Bose-Einstein condensation, because the particle number is not conserved and at low temperatures the photons disappear in the system’s walls instead of massively occupying the cavity ground mode. This is not the case in a small optical cavity, with a low-frequency cutoff imprinting a spectrum of photon energies restricted to values well above the thermal energy. The here reported experiments are based on a microscopic optical cavity filled with dye solution at room temperature. Recent experiments of our group observing Bose-Einstein condensation of photons in such a setup are described. Moreover, we discuss some possible applications of photon condensates to realize quantum manybody states in periodic photonic lattices and photonic Josephson devices.

Paper Details

Date Published: 22 February 2013
PDF: 8 pages
Proc. SPIE 8600, Laser Resonators, Microresonators, and Beam Control XV, 86000L (22 February 2013); doi: 10.1117/12.2001831
Show Author Affiliations
Jan Klaers, Rheinische Friedrich-Wilhelms-Univ. Bonn (Germany)
Julian Schmitt, Rheinische Friedrich-Wilhelms-Univ. Bonn (Germany)
Tobias Damm, Rheinische Friedrich-Wilhelms-Univ. Bonn (Germany)
David Dung, Rheinische Friedrich-Wilhelms-Univ. Bonn (Germany)
Frank Vewinger, Rheinische Friedrich-Wilhelms-Univ. Bonn (Germany)
Martin Weitz, Rheinische Friedrich-Wilhelms-Univ. Bonn (Germany)

Published in SPIE Proceedings Vol. 8600:
Laser Resonators, Microresonators, and Beam Control XV
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Lutz Aschke; Kunihiko Washio, Editor(s)

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