Data di Pubblicazione:
2006
Abstract:
Few micron-thick one-dimensional optical superlattices were designed and grown, in which an
optimized choice of external dielectric layers allows the formation of a wide and high transmission
miniband of coupled cavity states. In such structures a reduction in light group velocity and minimal
line shape distortion of propagating optical signal was observed. Group velocity reduction by a
factor of 5, obtained both from phase (white-light interferometry) and from time-resolved
measurements, is in reasonably good agreement with those calculated through a transfer matrix
approach. Time-resolved experiments confirm the minimal line shape distortion for optical pulses of
1.8 THz bandwidth at l=1.5 um wavelength.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
Dielectric Multilayers; Optical Microcavities; Phase Sensitive Interferometruy
Elenco autori:
Ghulinyan, M; Galli, Matteo; Toninelli, C; Bertolotti, J; Gottardo, S; Marabelli, Franco; Wiersma, Ds; Pavesi, L; Andreani, Lucio
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