Linear electro-optic reflectance modulated spectra of GaAs (001) around E1 and E1+1transitions
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| Format: | Artículo científico |
| Sprache: | en |
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Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.
1999
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| author | A. Lastras Martínez |
| author_facet | A. Lastras Martínez |
| contents | Linear electro-optic reflectance modulated spectra of GaAs (001) around E1 and E1+1transitions A. Lastras Martínez L. F. Lastras Martínez R.E. Balderas Navarro Física, Astronomía y Matemáticas We report on the determination of the linear electro optic (LEO) reflectance modulated spectra of GaAs (100). LEOspectra were obtained from photoreflectance (PR) measurements. Experiments were carried out in an energy rangearound the E1 and E1+1 interband transitions. Two samples were employed, an undoped homepitaxial GaAs and aGaAs bulk crystal doped with Te donors in the low 1017/cm3 range. We show that, although LEO spectra amplitudes forthe two samples differ for one order of magnitude, their line shape is essentially the same. We further report on RDmeasurements aimed to obtain LEO spectra. We employed the same GaAs samples for, both, PR and RD measurementsin order to contrast the information provided by these two techniques 1999 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94200912 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.9 |
| format | Artículo científico |
| id | redalyc_94200912 |
| institution | Redalyc |
| language | en |
| publishDate | 1999 |
| publisher | Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. |
| spellingShingle | Linear electro-optic reflectance modulated spectra of GaAs (001) around E1 and E1+1transitions A. Lastras Martínez Física, Astronomía y Matemáticas Linear electro-optic reflectance modulated spectra of GaAs (001) around E1 and E1+1transitions A. Lastras Martínez L. F. Lastras Martínez R.E. Balderas Navarro Física, Astronomía y Matemáticas We report on the determination of the linear electro optic (LEO) reflectance modulated spectra of GaAs (100). LEOspectra were obtained from photoreflectance (PR) measurements. Experiments were carried out in an energy rangearound the E1 and E1+1 interband transitions. Two samples were employed, an undoped homepitaxial GaAs and aGaAs bulk crystal doped with Te donors in the low 1017/cm3 range. We show that, although LEO spectra amplitudes forthe two samples differ for one order of magnitude, their line shape is essentially the same. We further report on RDmeasurements aimed to obtain LEO spectra. We employed the same GaAs samples for, both, PR and RD measurementsin order to contrast the information provided by these two techniques 1999 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94200912 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.9 |
| title | Linear electro-optic reflectance modulated spectra of GaAs (001) around E1 and E1+1transitions |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=94200912 |