Fourier transform analysis of electromodulation spectra: Effects of the modulation amplitude
- 10 November 1997
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 71 (19) , 2788-2790
- https://doi.org/10.1063/1.120134
Abstract
Fourier transform analysis of Franz-Keldysh oscillations is applied to electroreflectance spectra of GaAs p–i–n diode structures in order to elucidate the role of the modulation amplitude in electric-field-modulated spectroscopies. The effects of modulation amplitude are quantitatively evaluated by considering the imaginary and real parts of the complex Fourier transform in addition to its modulus. The experimentally measured electroreflectance spectra and their Fourier transforms are in good agreement with model calculations.Keywords
This publication has 19 references indexed in Scilit:
- Five-levelk⋅pmodel for the conduction and valence bands of GaAs and InPPhysical Review B, 1996
- Addendum: ‘‘Fast Fourier transform of photoreflectance spectroscopy of δ-doped GaAs’’ [Appl. Phys. Lett. 67, 2069 (1995)]Applied Physics Letters, 1996
- Pressure-induced critical behavior ofclose to=3.1 GPa: X-ray diffraction resultsPhysical Review B, 1996
- Fourier resolution of surface and interface contributions to photoreflectance spectra of multilayered structuresPhysica Status Solidi (a), 1995
- Determination of built-in electric fields in delta-doped GaAs structures by phase-sensitive photoreflectanceSolid-State Electronics, 1994
- Qualification of OMVPE AlGaAs/GaAs HBT structures using nondestructive photoreflectance spectroscopyJournal of Crystal Growth, 1991
- Photoreflectance study of the internal electric fields at the n-type GaAs surface and across the n-type GaAs/substrate interfaceSuperlattices and Microstructures, 1990
- Photoreflectance study of surface Fermi level in GaAs and GaAlAsApplied Physics Letters, 1990
- Generalized Franz-Keldysh theory of electromodulationPhysical Review B, 1990
- Schottky-Barrier Electroreflectance: Application to GaAsPhysical Review B, 1973