Wide-band transmission of nondistorted slow waves in one-dimensional optical superlattices
Anno: 2006
Autori: Ghulinyan M., Galli M., Toninelli C, Bertolotti J., Gottardo S., Marabelli F., Wiersma D., Pavesi L., Andreani LC.
Affiliazione autori: Univ Trent, Dept Phys, I-38050 Trento, Italy; Univ Pavia, Dept Phys A Volta, I-27100 Pavia, Italy;
European Lab Nonlinear Spectroscopy, I-50019 Florence, Italy;
INFM MATIS, I-50019 Florence, Italy
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 lambda=1.5 mu m wavelength.
Giornale/Rivista: APPLIED PHYSICS LETTERS
Volume: 88 (24) Da Pagina: 241103-1 A: 241103-3
Parole chiavi: light; guides; DOI: 10.1063/1.2209716Citazioni: 24dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-05Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui