Experimental and theoretical density-dependent absorption spectra in (GaInSb/InAs)/AlGaSb superlattice multiple quantum wells

Autor:	T. C. Hasenberg, J. T. Olesberg, S. W. McCahon, Michael E. Flatté, S. A. Anson, David H. Chow, Thomas F. Boggess
Rok vydání:	1998
Předmět:	Materials science Physics and Astronomy (miscellaneous) Absorption spectroscopy business.industry Band gap Superlattice Laser Molecular physics Spectral line Semiconductor laser theory law.invention law Optoelectronics Electronic band structure business Absorption (electromagnetic radiation)
Zdroj:	Applied Physics Letters. 72:229-231
ISSN:	1077-3118 0003-6951
Popis:	A broadly tunable, ultrafast optical parametric oscillator is used to measure carrier-density-dependent absorption spectra in a 340-meV band gap (GaInSb/InAs)/AlGaSb superlattice multiple quantum well structure. Similar structures have been implemented recently as the active region in midinfrared diode lasers. The measured spectra are compared with calculated spectra computed using a semiempirical eight-band superlattice K⋅p model. The model provides good agreement with the experimentally observed spectral and density dependence of the absorption. These results provide confirmation that the model may be used for band structure engineering of optimized midinfrared laser active regions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ca3d0242014fb474183e75257dc87e21 https://doi.org/10.1063/1.120694 Zobrazit plný text záznamu