p-polarized infrared attenuated total reflection study of InN thin films grown on Si(111) substrate

S. S. Ng, S. C. Lee, P. K. Ooi, Z. Hassan, H. Abu Hassan, W. L. Chen

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We report for the first time the surface phonon polariton (SPP) and interface phonon polariton (IPP) characteristics of InN thin films grown on AlN buffer layer on Si(111) substrate by molecular beam expitaxy. The p-polarized infrared attenuated total reflection technique was used to excite the SPP and IPP modes of the sample. It was found that the SPP mode of InN and the IPP mode of InN/AlN were clearly observed at 609 cm-1 and 877 cm-1, respectively. The origins of the observed peaks were verified by theoretical simulations based on the anisotropic model. In general, a good agreement between the experimental and theoretical results was obtained. Finally, the effect of the free carriers on the SPP mode is discussed.

Original languageEnglish
Pages (from-to)191-193
Number of pages3
JournalPhysica Status Solidi - Rapid Research Letters
Volume4
Issue number8-9
DOIs
Publication statusPublished - 2010 Sep 1

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polaritons
Infrared radiation
Thin films
Substrates
thin films
Molecular beams
Buffer layers
molecular beams
buffers
simulation

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Ng, S. S. ; Lee, S. C. ; Ooi, P. K. ; Hassan, Z. ; Hassan, H. Abu ; Chen, W. L. / p-polarized infrared attenuated total reflection study of InN thin films grown on Si(111) substrate. In: Physica Status Solidi - Rapid Research Letters. 2010 ; Vol. 4, No. 8-9. pp. 191-193.
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p-polarized infrared attenuated total reflection study of InN thin films grown on Si(111) substrate. / Ng, S. S.; Lee, S. C.; Ooi, P. K.; Hassan, Z.; Hassan, H. Abu; Chen, W. L.

In: Physica Status Solidi - Rapid Research Letters, Vol. 4, No. 8-9, 01.09.2010, p. 191-193.

Research output: Contribution to journalArticle

TY - JOUR

T1 - p-polarized infrared attenuated total reflection study of InN thin films grown on Si(111) substrate

AU - Ng, S. S.

AU - Lee, S. C.

AU - Ooi, P. K.

AU - Hassan, Z.

AU - Hassan, H. Abu

AU - Chen, W. L.

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AB - We report for the first time the surface phonon polariton (SPP) and interface phonon polariton (IPP) characteristics of InN thin films grown on AlN buffer layer on Si(111) substrate by molecular beam expitaxy. The p-polarized infrared attenuated total reflection technique was used to excite the SPP and IPP modes of the sample. It was found that the SPP mode of InN and the IPP mode of InN/AlN were clearly observed at 609 cm-1 and 877 cm-1, respectively. The origins of the observed peaks were verified by theoretical simulations based on the anisotropic model. In general, a good agreement between the experimental and theoretical results was obtained. Finally, the effect of the free carriers on the SPP mode is discussed.

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