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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 8 — Apr. 15, 2014
  • pp: 2274–2277

Measurement of the complex nonlinear optical response of a surface plasmon-polariton

Israel De Leon, Zhimin Shi, Andreas C. Liapis, and Robert W. Boyd  »View Author Affiliations


Optics Letters, Vol. 39, Issue 8, pp. 2274-2277 (2014)
http://dx.doi.org/10.1364/OL.39.002274


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Abstract

We observe experimentally the self-phase modulation of a surface plasmon-polariton (SPP) propagating along a gold film bounded by air in a Kretschmann–Raether configuration. Through analyzing the power dependence of the reflectance curve as a function of the incidence angle, we characterize the complex-valued nonlinear propagation coefficient of the SPP. Moreover, we present a procedure that can further extract the complex value of the third-order nonlinear susceptibility of gold from our experimental data. Our work provides direct insights into nonlinear control of SPPs utilizing the nonlinearity of metals, and serves as a practical method to measure the complex-valued third-order nonlinear susceptibility of metallic materials.

© 2014 Optical Society of America

OCIS Codes
(190.5940) Nonlinear optics : Self-action effects
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(240.4350) Optics at surfaces : Nonlinear optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Nonlinear Optics

History
Original Manuscript: January 20, 2014
Revised Manuscript: March 5, 2014
Manuscript Accepted: March 8, 2014
Published: April 8, 2014

Citation
Israel De Leon, Zhimin Shi, Andreas C. Liapis, and Robert W. Boyd, "Measurement of the complex nonlinear optical response of a surface plasmon-polariton," Opt. Lett. 39, 2274-2277 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-8-2274

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