Open AccessDesign of mesoscopic photonic crystal waveguides
Author(s) -
Ferrara Benedetta,
Grande Marco,
Calò Giovanna,
D'Orazio Antonella,
Petruzzelli Vincenzo,
Dagens Beatrice,
Monmayrant Antoine,
GauthierLafaye Olivier,
Magno Giovanni
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.5103
Subject(s) - mesoscopic physics , photonic crystal , reconfigurability , waveguide , optics , gaussian beam , finite difference time domain method , collimated light , planar , physics , computer science , laser , telecommunications , beam (structure) , quantum mechanics , computer graphics (images)
The authors numerically analyse the performance of a mesoscopic photonic crystal (MPhC) waveguide that could be exploited to develop a new class of routing elements and a cascadable circuitry taking advantage of the spatial and spectral reconfigurability that this structure offers. The design of the MPhC was performed by means of the 3D plane wave expansion method (3D‐MPB code), while the MPhC waveguide has been analysed by a 3D‐FDTD code. The numerical results show that the MPhC waveguide exhibits minimal reflections at PhC input interfaces without either affecting the feasibility or the complexity of the structure, high transmission, strong mesoscopic self‐collimation and discrete translational invariance. Moreover, the influence of the characteristics of the Gaussian source on the collimation phenomenon has been explored by considering different values of the waist radius.