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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 10 — May. 10, 2010
  • pp: 10354–10359

Surface phonon polariton characteristics of In0.04Al0.06Ga0.90N/AlN/Al2O3 heterostructure

S. S. Ng, S. C. Lee, S. K. Mohd Bakhori, Z. Hassan, H. Abu Hassan, V. A. Yakovlev, N. N. Novikova, and E. A. Vinogradov  »View Author Affiliations

Optics Express, Vol. 18, Issue 10, pp. 10354-10359 (2010)

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Surface phonon polariton (SPP) characteristics of In0.04Al0.06Ga0.90N/AlN/Al2O3 heterostructure are investigated by means of p-polarized infrared (IR) attenuated total reflection spectroscopy. Two absorption dips corresponding to In0.04Al0.06Ga0.90N SPP modes are observed. In addition, two prominent dips and one relatively weak and broad dip corresponding to the Al2O3 SPP mode, In0.04Al0.06Ga0.90N/Al2O3 interface mode, and Al2O3 bulk polariton mode, respectively, are clearly seen. No surface mode feature originating from the AlN layer is observed because it is too thin. Overall, the observations are in good agreement with the theoretical predictions.

© 2010 OSA

OCIS Codes
(160.1190) Materials : Anisotropic optical materials
(160.6000) Materials : Semiconductor materials
(240.0310) Optics at surfaces : Thin films
(240.5420) Optics at surfaces : Polaritons
(300.6340) Spectroscopy : Spectroscopy, infrared

ToC Category:
Optics at Surfaces

Original Manuscript: March 8, 2010
Revised Manuscript: March 31, 2010
Manuscript Accepted: April 7, 2010
Published: May 4, 2010

S. S. Ng, S. C. Lee, S. K. Mohd Bakhori, Z. Hassan, H. Abu Hassan, V. A. Yakovlev, N. N. Novikova, and E. A. Vinogradov, "Surface phonon polariton characteristics of In0.04Al0.06Ga0.90N/AlN/Al2O3 heterostructure," Opt. Express 18, 10354-10359 (2010)

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