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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 22 — Nov. 15, 2010
  • pp: 3814–3816

Loss measurement of plasmonic modes in planar metal–insulator–metal waveguides by an attenuated total reflection method

Chien-I Lin and Thomas K. Gaylord  »View Author Affiliations


Optics Letters, Vol. 35, Issue 22, pp. 3814-3816 (2010)
http://dx.doi.org/10.1364/OL.35.003814


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Abstract

We report experimental excitation and characterization of surface plasmon modes in planar metal–insulator–metal (MIM) waveguides. Our approach is based on determining the width of the reflection angular spectrum in the attenuated total reflection (ATR) configuration. Owing to its transverse character, the ATR configuration provides a more straightforward and simpler way to determine the loss of plasmonic modes in MIM structures, compared to using tapered end couplers with multiple waveguide samples or scanning near-field optical microscopy. In this Letter, two waveguide structures with Au claddings and 50 / 200 nm SiO 2 cores are investigated. The propagation lengths measured at λ = 1.55 μm are 5.7 and 18 μm , respectively, in agreement with the theoretical predictions.

© 2010 Optical Society of America

OCIS Codes
(230.7370) Optical devices : Waveguides
(240.6680) Optics at surfaces : Surface plasmons
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Optical Devices

History
Original Manuscript: August 16, 2010
Revised Manuscript: October 15, 2010
Manuscript Accepted: October 20, 2010
Published: November 9, 2010

Citation
Chien-I Lin and Thomas K. Gaylord, "Loss measurement of plasmonic modes in planar metal–insulator–metal waveguides by an attenuated total reflection method," Opt. Lett. 35, 3814-3816 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-22-3814

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