Picosecond nonlinear spectroscopy of quantum-size PbTe films

Авторы: Kornienko A.G., Petnikova V.M., Vereshchagina L.N., Zherikhin A.N., Shuvalov V.V.
Сборник: ICONO'95, Nonlinear optics of low-dimensional structures and new materials
Том: 2801
Год издания: 1996
Место издания: SPIE
Первая страница: 19
Последняя страница: 28
DOI: 10.1117/12.242138
Аннотация: We propose new and promising technique for studying quantum- size structures. We tested this technique based on optical two-photon excitation and probing of renormalized electron spectrum in our investigation of monocrystalline PbTe films. We revealed sharp dependence of spectral position of two- photon resonances versus film thickness L equals 6, 18, and 30 nm. Our theoretical model explained this result by taking into account Pb Te band structure, electron-electron and electron-phonon interactions, and redistribution of charge carriers due to inter- and intraband processes. Estimation T2 >= 300 fs for decay time of interband polarization was obtained
Добавил в систему: Шувалов Владимир Владимирович

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