Risultati scientifici

Oscillatory Vertical Coupling between a Whispering-Gallery Resonator and a Bus Waveguide

Anno: 2013

Autori: Ghulinyan M., Ramiro-Manzano F., Prljaga N., Guider R., Carusotto I., Pitanti A., Pucker G., Pavesi L.

Affiliazione autori: Advanced Photonics and Photovoltaics Unit, Fondazione Bruno Kessler, I-38123 Povo, Italy; Department of Physics, Nanoscience Laboratory, University of Trento, I-38123 Povo, Italy; INO-CNR BEC Center and Department of Physics, University of Trento, I-38123 Povo, Italy; NEST, Scuola Normale Superiore and Istituto Nanoscienze-CNR, Piazza San Silvestro 12, 56127 Pisa, Italy

Abstract: We report on a theoretical and experimental study of the optical coupling between a whispering-gallery type resonator and a waveguide lying on different planes. In contrast to the usual in-plane geometry, the present vertical one is characterized by an oscillatory behavior of the effective coupling as a function of the vertical gap. This behavior manifests itself as oscillations in both the resonance peak waveguide transmission and the mode quality factor. An analytical description based on coupled-mode theory and a two-port beam-splitter model of the waveguide-resonator vertical coupling is developed for arbitrary phase-matching conditions and is successfully used to interpret the experimental observations. DOI: 10.1103/PhysRevLett.110.163901


Volume: 110 (16)      Da Pagina: 163901  A: 163901

Maggiori informazioni: The authors thank M. R. Vanacharla for stimulating discussions, and MTLab-FBK staff for the support in realizing samples. This work has been supported by NAoMI-FUPAT. F. R. M. thanks the project APPCOPTOR financed through an FP7 EU Marie Curie fellowship.
DOI: 10.1103/PhysRevLett.110.163901

Citazioni: 37
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2022-01-23
Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
Link per visualizzare la scheda su IsiWeb: Clicca qui
Link per visualizzare la citazioni su IsiWeb: Clicca qui

This site uses cookies. If you decide to continue browsing we consider that you accept their use. For more information about cookies and how to delete them please read our Info Policy on cookies use.
Read more