Studies of the photonic and optical-frequency phonon properties of selectively grown GaN micro-pyramids

D. Coquillat, M. Le Vassor D'Yerville, M. Kazan, C. Liu, I.M. Watson, P.R. Edwards, R.W. Martin, H.M.H. Chong, R.M. De La Rue

Research output: Contribution to journalArticle

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Abstract

An array of GaN micropyramids containing a near-surface InxGa1-xN/GaN single quantum well has been fabricated using selective area epitaxial overgrowth above a patterned silica mask. The pyramid array has been studied by means of angle-resolved reflection measurements using s- and p-polarized incident light in the near- and mid-infrared optical ranges. We have found that the periodic array of flat-topped pyramids shows marked resonances in the near-infrared optical range due to resonant Bloch modes within the extraction cone and that the angular dispersion of these modes exhibits strong photonic crystal characteristics. The experimental results are in good agreement with the photonic band structure calculated using a scattering matrix formalism. The mid-infrared optical anisotropy properties of the micropyramids were investigated to probe the infrared active phonons of the pyramid array. The A1(LO) phonon of the InxGa1-xN/GaN single quantum well was identified and the InN mole fraction was estimated from the mode behavior
Original languageEnglish
Pages (from-to)004910-004910
Number of pages0
JournalJournal of Applied Physics
Volume103
Issue number4
DOIs
Publication statusPublished - 28 Feb 2008

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pyramids
photonics
quantum wells
S matrix theory
sands
cones
phonons
masks
formalism
silicon dioxide
anisotropy
probes
crystals

Keywords

  • epitaxial growth
  • gallium compounds
  • III-V semiconductors
  • indium compounds
  • phonons
  • photonic crystals
  • semiconductor epitaxial layers
  • semiconductor quantum wells

Cite this

Coquillat, D. ; Le Vassor D'Yerville, M. ; Kazan, M. ; Liu, C. ; Watson, I.M. ; Edwards, P.R. ; Martin, R.W. ; Chong, H.M.H. ; De La Rue, R.M. / Studies of the photonic and optical-frequency phonon properties of selectively grown GaN micro-pyramids. In: Journal of Applied Physics. 2008 ; Vol. 103, No. 4. pp. 004910-004910.
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abstract = "An array of GaN micropyramids containing a near-surface InxGa1-xN/GaN single quantum well has been fabricated using selective area epitaxial overgrowth above a patterned silica mask. The pyramid array has been studied by means of angle-resolved reflection measurements using s- and p-polarized incident light in the near- and mid-infrared optical ranges. We have found that the periodic array of flat-topped pyramids shows marked resonances in the near-infrared optical range due to resonant Bloch modes within the extraction cone and that the angular dispersion of these modes exhibits strong photonic crystal characteristics. The experimental results are in good agreement with the photonic band structure calculated using a scattering matrix formalism. The mid-infrared optical anisotropy properties of the micropyramids were investigated to probe the infrared active phonons of the pyramid array. The A1(LO) phonon of the InxGa1-xN/GaN single quantum well was identified and the InN mole fraction was estimated from the mode behavior",
keywords = "epitaxial growth, gallium compounds, III-V semiconductors, indium compounds, phonons, photonic crystals, semiconductor epitaxial layers, semiconductor quantum wells",
author = "D. Coquillat and {Le Vassor D'Yerville}, M. and M. Kazan and C. Liu and I.M. Watson and P.R. Edwards and R.W. Martin and H.M.H. Chong and {De La Rue}, R.M.",
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Studies of the photonic and optical-frequency phonon properties of selectively grown GaN micro-pyramids. / Coquillat, D.; Le Vassor D'Yerville, M.; Kazan, M.; Liu, C.; Watson, I.M.; Edwards, P.R.; Martin, R.W.; Chong, H.M.H.; De La Rue, R.M.

In: Journal of Applied Physics, Vol. 103, No. 4, 28.02.2008, p. 004910-004910.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Studies of the photonic and optical-frequency phonon properties of selectively grown GaN micro-pyramids

AU - Coquillat, D.

AU - Le Vassor D'Yerville, M.

AU - Kazan, M.

AU - Liu, C.

AU - Watson, I.M.

AU - Edwards, P.R.

AU - Martin, R.W.

AU - Chong, H.M.H.

AU - De La Rue, R.M.

PY - 2008/2/28

Y1 - 2008/2/28

N2 - An array of GaN micropyramids containing a near-surface InxGa1-xN/GaN single quantum well has been fabricated using selective area epitaxial overgrowth above a patterned silica mask. The pyramid array has been studied by means of angle-resolved reflection measurements using s- and p-polarized incident light in the near- and mid-infrared optical ranges. We have found that the periodic array of flat-topped pyramids shows marked resonances in the near-infrared optical range due to resonant Bloch modes within the extraction cone and that the angular dispersion of these modes exhibits strong photonic crystal characteristics. The experimental results are in good agreement with the photonic band structure calculated using a scattering matrix formalism. The mid-infrared optical anisotropy properties of the micropyramids were investigated to probe the infrared active phonons of the pyramid array. The A1(LO) phonon of the InxGa1-xN/GaN single quantum well was identified and the InN mole fraction was estimated from the mode behavior

AB - An array of GaN micropyramids containing a near-surface InxGa1-xN/GaN single quantum well has been fabricated using selective area epitaxial overgrowth above a patterned silica mask. The pyramid array has been studied by means of angle-resolved reflection measurements using s- and p-polarized incident light in the near- and mid-infrared optical ranges. We have found that the periodic array of flat-topped pyramids shows marked resonances in the near-infrared optical range due to resonant Bloch modes within the extraction cone and that the angular dispersion of these modes exhibits strong photonic crystal characteristics. The experimental results are in good agreement with the photonic band structure calculated using a scattering matrix formalism. The mid-infrared optical anisotropy properties of the micropyramids were investigated to probe the infrared active phonons of the pyramid array. The A1(LO) phonon of the InxGa1-xN/GaN single quantum well was identified and the InN mole fraction was estimated from the mode behavior

KW - epitaxial growth

KW - gallium compounds

KW - III-V semiconductors

KW - indium compounds

KW - phonons

KW - photonic crystals

KW - semiconductor epitaxial layers

KW - semiconductor quantum wells

UR - http://dx.doi.org/10.1063/1.2841722

U2 - 10.1063/1.2841722

DO - 10.1063/1.2841722

M3 - Article

VL - 103

SP - 4910

EP - 4910

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 4

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