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 | |
| Publication status | Published - 1991 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
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Defect activated infrared multiphonon excitation in iron-doped semi-insulating indium phosphide. / Peng, Lung Han; Broekaert, Tom; Choi, Woo Young; Fonstad, Clifton; Jones, Victor.
In: Applied Physics Letters, Vol. 59, No. 5, 01.12.1991, p. 564-566.Research output: Contribution to journal › Article
TY - JOUR
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 - 1991/12/1
Y1 - 1991/12/1
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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U2 - 10.1063/1.105387
DO - 10.1063/1.105387
M3 - Article
AN - SCOPUS:0242483532
VL - 59
SP - 564
EP - 566
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 5
ER -