Resonant second harmonic generation spectroscopy of short-period Si/SiO/sub 2/ multiple quantum wells

Resonant second harmonic generation spectroscopy of short-period Si/SiO/sub 2/ multiple quantum wells

We report a spectroscopic SHG study of short-period Si/SiO/sub 2/ MQWs. Strong thickness-dependent resonances were observed that can be interpreted as intersubband transition. A new potential well model is suggested with electrostatic self-images being taken into account. MQW structures were made by...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Mishina, E.D., Elyutin, P.V., Malinnikova, E.V., Rubtsov, A.N., Aktsipetrov, O.A., de Jong, W., Rasing, T.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Electrostatics
Frequency conversion
Laser modes
Laser transitions
Magnetic resonance
Potential well
Quantum well devices
Radio frequency
Spectroscopy
Sputtering
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We report a spectroscopic SHG study of short-period Si/SiO/sub 2/ MQWs. Strong thickness-dependent resonances were observed that can be interpreted as intersubband transition. A new potential well model is suggested with electrostatic self-images being taken into account. MQW structures were made by RF magnetron sputtering on a Si(100) substrate and consisted of 40 double layers of Si/SiO/sub 2/. For the spectroscopic SHG experiments a Ti:sapphire laser between 710 and 850 nm with a pulse duration of about 100 fs and an average input power of 0.1 W was used.