Band gaps and cavity modes in dual phononic and photonic strip waveguides

Autor: Y. Pennec, B. Djafari Rouhani, C. Li, J. M. Escalante, A. Martinez, S. Benchabane, V. Laude, N. Papanikolaou
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: AIP Advances, Vol 1, Iss 4, Pp 041901-041901-8 (2011)
Druh dokumentu: article
ISSN: 2158-3226
DOI: 10.1063/1.3675799
Popis: We discuss theoretically the simultaneous existence of phoxonic, i.e., dual phononic and photonic, band gaps in a periodic silicon strip waveguide. The unit-cell of this one-dimensional waveguide contains a hole in the middle and two symmetric stubs on the sides. Indeed, stubs and holes are respectively favorable for creating a phononic and a photonic band gap. Appropriate geometrical parameters allow us to obtain a complete phononic gap together with a photonic gap of a given polarization and symmetry. The insertion of a cavity inside the perfect structure provides simultaneous confinement of acoustic and optical waves suitable to enhance the phonon-photon interaction.
Databáze: Directory of Open Access Journals