Spectroscopy of photonic bands in macroporous silicon photonic crystals
Anno: 2002
Autori: Galli M., Agio M., Andreani L.C., Belotti M., Guizzetti G., Marabelli F., Patrini M., Bettotti P., Dal Negro L., Gaburro Z., Pavesi L., Liu A., Bellutti P.
Affiliazione autori: Univ Pavia, Dipartimento Fis A Volta, INFM, I-27100 Pavia, Italy; Univ Trent, Dipartimento Fis, INFM, I-35040 Povo, Italy; IRST, ITC, I-35040 Povo, Italy.
Abstract: Variable-angle reflectance performed on macroporous silicon photonic crystals yields the dispersion of two-dimensional photonic bands. A comparison with calculated optical spectra identifies the spectral structures, which mark the onset of a propagating photonic mode, as one-dimensional critical points. The experimental results agree with theoretical determinations of the reflectance and of the photonic-band dispersion in a wide energy range. A symmetry analysis yields the selection rules for excitation of photonic modes, which can be treated like elementary excitations of the crystal.
Giornale/Rivista: PHYSICAL REVIEW B
Volume: 65 (11) Da Pagina: 113111-1 A: 113111-4
Parole chiavi: Emission; GapDOI: 10.1103/PhysRevB.65.113111Citazioni: 35dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
