Observation of quantum confinement and quantum size effects

Recently, the change in optical properties of ultra‐thin silicon on insulator films was shown to be due to quantum confinement. The E1 critical point shifted to higher energies with a 1/L2 dependence, and the shift was observed room temperature. Yet, quantum confinement effects in thin metal have ye...

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Veröffentlicht in:	Physica status solidi. A, Applications and materials science Applications and materials science, 2008-04, Vol.205 (4), p.896-900
Hauptverfasser:	Diebold, A. C., Price, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	78.20.Ci 78.67.−n Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of specific thin films Physics
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Beschreibung
Zusammenfassung:	Recently, the change in optical properties of ultra‐thin silicon on insulator films was shown to be due to quantum confinement. The E1 critical point shifted to higher energies with a 1/L2 dependence, and the shift was observed room temperature. Yet, quantum confinement effects in thin metal have yet to be observed optically. This leads to a number of questions that we raise and for which we provide preliminary answers. Shifts less than kT in energy can be observed optically when the final state is spatially and temporally localized. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:	1862-6300 0031-8965 1862-6319
DOI:	10.1002/pssa.200777891