Rigorous simulation of nonlinear optomechanical coupling in micro- and nano-structured resonant cavities. Issue 1 (2nd January 2018)

• Record Type: Journal Article
• Authors: Stocchi, Matteo; Mencarelli, Davide; Pennec, Yan; Djafari-Rouhani, Bahram; Pierantoni, Luca
• Is Part Of: International journal of optomechatronics. Volume 12:Issue 1(2018)
• Page Start: 11
• Page End: 19
• Publication Date: 2018-01-02
• Subjects: Optomechanics -- stimulated Brillouin scattering -- numerical analysis -- full-wave simulation -- moving boundary effect; Optical engineering -- Periodicals; Mechanical engineering -- Periodicals; Electrical engineering -- Periodicals; Photonics -- Periodicals; Mechatronics -- Periodicals; 621.36
• DOI: 10.1080/15599612.2018.1459977
• Languages: English
• ISSNs: 1559-9612

Abstract

Abstract: A numerical method aimed to predict the optomechanical dynamics in micro- and nano-structured resonant cavities is introduced here. The rigorousness of it is ensured by exploiting the harmonic version of the transformation optics (TO) technique and by considering all the energy-transduction contributions of electrostriction, radiation pressure, photoelasticity and moving boundaries. Since our full-wave approach implements a multi-modal analysis and also considers material losses, from both a mechanical and an optical point of view, a considerable step further has been made in respect to the standard optomechanical perturbative theory. The efficiency and the versatility of the strategy are tested by analysing the optomechanical behaviour of a corrugated Si-based nanobeam and comparing numerical results to experimental ones from the literature.