Defect activated infrared multiphonon excitation in iron-doped semi-insulating indium phosphide

Lung Han Peng; Tom Broekaert; Woo Young Choi; Clifton Fonstad; Victor Jones

doi:10.1063/1.105387

Defect activated infrared multiphonon excitation in iron-doped semi-insulating indium phosphide

Lung Han Peng, Tom Broekaert, Woo Young Choi, Clifton Fonstad, Victor Jones

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Multiphonon excitation induced by long-range order crystal-field and short-range order Jahn-Teller distortion effects is observed in Fe-doped semi-insulating InP in the spectral range from 400 to 1100 cm^-1 for infrared light propagating in a slab waveguide geometry. Transmission measurement data are analyzed in terms of phonon energies at critical points in the Brillouin zone. The phonon energies obtained are in excellent agreement with recently reported second order Raman scattering spectra and two-phonon absorption measurements of crystalline InP. The energy differences between the nearly degenerate two phonon transverse optical+longitudinal optical transitions at the Γ, X, and L points are also resolved and shown to be 10 cm ^-1. No localized mode or vibronic level absorption is observed, consistent with the relatively low concentration of Fe impurities in the samples.

Original language	English
Pages (from-to)	564-566
Number of pages	3
Journal	Applied Physics Letters
Volume	59
Issue number	5
DOIs	https://doi.org/10.1063/1.105387
Publication status	Published - 1991

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.105387

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title = "Defect activated infrared multiphonon excitation in iron-doped semi-insulating indium phosphide",

abstract = "Multiphonon excitation induced by long-range order crystal-field and short-range order Jahn-Teller distortion effects is observed in Fe-doped semi-insulating InP in the spectral range from 400 to 1100 cm-1 for infrared light propagating in a slab waveguide geometry. Transmission measurement data are analyzed in terms of phonon energies at critical points in the Brillouin zone. The phonon energies obtained are in excellent agreement with recently reported second order Raman scattering spectra and two-phonon absorption measurements of crystalline InP. The energy differences between the nearly degenerate two phonon transverse optical+longitudinal optical transitions at the Γ, X, and L points are also resolved and shown to be 10 cm -1. No localized mode or vibronic level absorption is observed, consistent with the relatively low concentration of Fe impurities in the samples.",

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journal = "Applied Physics Letters",

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T1 - Defect activated infrared multiphonon excitation in iron-doped semi-insulating indium phosphide

AU - Peng, Lung Han

AU - Broekaert, Tom

AU - Choi, Woo Young

AU - Fonstad, Clifton

AU - Jones, Victor

PY - 1991

Y1 - 1991

N2 - Multiphonon excitation induced by long-range order crystal-field and short-range order Jahn-Teller distortion effects is observed in Fe-doped semi-insulating InP in the spectral range from 400 to 1100 cm-1 for infrared light propagating in a slab waveguide geometry. Transmission measurement data are analyzed in terms of phonon energies at critical points in the Brillouin zone. The phonon energies obtained are in excellent agreement with recently reported second order Raman scattering spectra and two-phonon absorption measurements of crystalline InP. The energy differences between the nearly degenerate two phonon transverse optical+longitudinal optical transitions at the Γ, X, and L points are also resolved and shown to be 10 cm -1. No localized mode or vibronic level absorption is observed, consistent with the relatively low concentration of Fe impurities in the samples.

AB - Multiphonon excitation induced by long-range order crystal-field and short-range order Jahn-Teller distortion effects is observed in Fe-doped semi-insulating InP in the spectral range from 400 to 1100 cm-1 for infrared light propagating in a slab waveguide geometry. Transmission measurement data are analyzed in terms of phonon energies at critical points in the Brillouin zone. The phonon energies obtained are in excellent agreement with recently reported second order Raman scattering spectra and two-phonon absorption measurements of crystalline InP. The energy differences between the nearly degenerate two phonon transverse optical+longitudinal optical transitions at the Γ, X, and L points are also resolved and shown to be 10 cm -1. No localized mode or vibronic level absorption is observed, consistent with the relatively low concentration of Fe impurities in the samples.

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