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Proceedings Paper

Quantum and nonlinear optics with surface plasmons: dependence of propagation losses on temperature
Author(s): D. E. Chang; M. D. Lukin
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Paper Abstract

Using quantum optical techniques to manipulate nanoscale surface plasmons guided along conducting nanostructures can enable an unprecedented level of control over the interaction between light and matter. This field of "quantum plasmonics" enables many applications such as single-photon sources and single-photon transistors and opens up the possibility of creating novel states of light. One potential limitation of plasmonics technology is associated with losses in the conductor, which limit the distance that the surface plasmon excitations can propagate. Here we discuss the potential for improvement by operating plasmonic devices at lower temperature. In particular, we analyze the temperature dependence of a major mechanism for propagation losses, involving absorption of surface plasmons via electron-phonon scattering in the conductor. We find that the ability to "freeze out" this loss mechanism depends highly on the frequency of the surface plasmon modes. In particular, losses at terahertz frequencies can be strongly suppressed, which potentially allows the techniques of quantum plasmonics to be extended to this new regime of operation.

Paper Details

Date Published: 29 January 2008
PDF: 9 pages
Proc. SPIE 6904, Advances in Slow and Fast Light, 69040I (29 January 2008); doi: 10.1117/12.772223
Show Author Affiliations
D. E. Chang, Harvard Univ. (United States)
M. D. Lukin, Harvard Univ. (United States)

Published in SPIE Proceedings Vol. 6904:
Advances in Slow and Fast Light
Selim M. Shahriar; Philip R. Hemmer; John R. Lowell, Editor(s)

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