2026-05-28T00:36:55Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/54912026-02-03T11:22:46Zcom_10630_2254col_10630_37953

Engineering the optical properties of silicon using sub-wavelength structures Halir, Robert Ortega-Moñux, Alejandro Maese-Novo, Alejandro Pérez-Galacho, Diego Zavargo-Peche, Luis Molina-Fernández, Íñigo Wanguemert-Pérez, Juan Gonzalo Cheben, Pavel Schmid, Jens H. Xu, Dan-Xia Janz, Siegfried Fedeli, Jean-Marc Óptica integrada - Congresos Fotónica - Congresos In most integrated optics platforms, including silicon-on-insulator, only minor modifications in refractive index are possible. The geometry of the waveguiding structure is thus the only degree of freedom for the design of devices. The use of sub-wavelength gratings (SWGs), i.e. structures that are small enough to suppress diffraction effects, enables local engineering of both refractive index and dispersion, thereby opening new possibilities for device design. Here we present some of the recent advances in refractive index and dispersion engineering using silicon SWGs, focussing on ultra-broadband and compact multimode interference couplers and directional couplers 2013-06-11T10:38:55Z 2013-06-11T10:38:55Z 2013-06-11T10:38:55Z 2013 journal article R. Halir, A. Ortega-Mo˜nux, A. Maese-Novo, D. Pérez-Galacho, L. Zavargo-Peche, I. Molina-Fernández, J. G. Wangüemert Pérez P. Cheben, J. H. Schmid, D.-X. Xu, S. Janz and J.-M. Fedeli, "Engineering the optical properties of silicon using sub-wavelength structures", THE 10TH INTERNATIONAL CONFERENCE ON GROUP IV PHOTONICS (GFP) 28 - 30 August 2013, Seoul, South Correa (Invited) http://hdl.handle.net/10630/5491 eng open access IEEE Photonics Society