Demonstration of a spaser-based nanolaser

M. A. Noginov (), G. Zhu, A. M. Belgrave, R. Bakker, V. M. Shalaev, E. E. Narimanov, S. Stout, E. Herz, T. Suteewong and U. Wiesner
Additional contact information
M. A. Noginov: Center for Materials Research, Norfolk State University, Norfolk, Virginia 23504, USA
G. Zhu: Center for Materials Research, Norfolk State University, Norfolk, Virginia 23504, USA
A. M. Belgrave: Center for Materials Research, Norfolk State University, Norfolk, Virginia 23504, USA
R. Bakker: School of Electrical & Computer Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA
V. M. Shalaev: School of Electrical & Computer Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA
E. E. Narimanov: School of Electrical & Computer Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA
S. Stout: Center for Materials Research, Norfolk State University, Norfolk, Virginia 23504, USA
E. Herz: Cornell University, Ithaca, New York 14850, USA
T. Suteewong: Cornell University, Ithaca, New York 14850, USA
U. Wiesner: Cornell University, Ithaca, New York 14850, USA

Nature, 2009, vol. 460, issue 7259, 1110-1112

Abstract: Plasmonic control: enter the spaser Nanoplasmonics — the nanoscale manipulation of surface plasmons (fluctuations in the electron density at a metallic surface) — could revolutionize applications ranging from sensing and biomedicine to imaging and information technology. But first, we need a simple and efficient method for actively generating coherent plasmonic fields. This is in theory possible with the spaser, first proposed in 2003 as a device that generates and amplifies surface plasmons in the same way that a laser generates and amplifies photons. Now Noginov et al. present the first unambiguous experimental demonstration of spasing, using 44-nm diameter nanoparticles with a gold core and dye-doped silica shell. The system generates stimulated emission of surface plasmons in the same way as a laser generates stimulated emission of coherent photons, and has been used to implement the smallest nanolaser reported to date, and the first operating at visible wavelengths.

Date: 2009
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DOI: 10.1038/nature08318

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