Coupling of Integrated Waveguide and Optomechanic Cavity for Microwave Phonon Excitation in Si Nanobeams
The availability of high quality manufacturing for optical micro/nano patterned cavities paves the way to the development of scalable circuits and devices based on optomechanical (OM) interaction of sound and light in extremely small volumes. In this contribution, we propose a new study on OM caviti...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-08-01
|
| Series: | Photonics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6732/7/3/67 |
| _version_ | 1797555030468853760 |
|---|---|
| author | Abdellatif Gueddida Bahram Djafari Rouhani Yan Pennec Andrea Di Donato Luca Pierantoni Alexander Korovin Davide Mencarelli |
| author_facet | Abdellatif Gueddida Bahram Djafari Rouhani Yan Pennec Andrea Di Donato Luca Pierantoni Alexander Korovin Davide Mencarelli |
| author_sort | Abdellatif Gueddida |
| collection | DOAJ |
| description | The availability of high quality manufacturing for optical micro/nano patterned cavities paves the way to the development of scalable circuits and devices based on optomechanical (OM) interaction of sound and light in extremely small volumes. In this contribution, we propose a new study on OM cavities that can lead to precise control of their coupling with closely integrated waveguides, a necessary condition to enhance mode excitation and wave energy trapping, opening the possibility for many potential applications in wave guiding, filtering, confinement, and sensing. Moreover, in this way the need for bulky experimental setups and/or optical fiber coupling/excitation is avoided. At the same time, quality factors of mechanical and optical modes resonating in the cavity are optimized, together with their OM coupling coefficients: high confinement of both excitations is a prerequisite to enable their acousto-optic (AO) interaction. To this aim, the transversal size of the cavity has been parabolically tapered, with the additional benefit of separating the cavity and the integrated waveguide far from the coupling region. The finite-element method has been used to perform full-wave analysis, and an accurate discussion about the simulation setup needed to properly describe optical scattering and radiation has been provided. |
| first_indexed | 2024-03-10T16:40:25Z |
| format | Article |
| id | doaj.art-194d6a5ba4d64e1891f5ce0f258c8ab4 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-10T16:40:25Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-194d6a5ba4d64e1891f5ce0f258c8ab42023-11-20T12:01:29ZengMDPI AGPhotonics2304-67322020-08-01736710.3390/photonics7030067Coupling of Integrated Waveguide and Optomechanic Cavity for Microwave Phonon Excitation in Si NanobeamsAbdellatif Gueddida0Bahram Djafari Rouhani1Yan Pennec2Andrea Di Donato3Luca Pierantoni4Alexander Korovin5Davide Mencarelli6Institut d’Electronique, Microélectronique et Nanotechnologie, UMR CNRS 8520, Department of Physics, University of Lille, 59652 Villeneuve d’Ascq, FranceInstitut d’Electronique, Microélectronique et Nanotechnologie, UMR CNRS 8520, Department of Physics, University of Lille, 59652 Villeneuve d’Ascq, FranceInstitut d’Electronique, Microélectronique et Nanotechnologie, UMR CNRS 8520, Department of Physics, University of Lille, 59652 Villeneuve d’Ascq, FranceDepartment of Information Engineering, University Politecnica of Marche, Via Brecce Bianche 12, 60100 Ancona, ItalyDepartment of Information Engineering, University Politecnica of Marche, Via Brecce Bianche 12, 60100 Ancona, ItalyInstitut d’Electronique, Microélectronique et Nanotechnologie, UMR CNRS 8520, Department of Physics, University of Lille, 59652 Villeneuve d’Ascq, FranceDepartment of Information Engineering, University Politecnica of Marche, Via Brecce Bianche 12, 60100 Ancona, ItalyThe availability of high quality manufacturing for optical micro/nano patterned cavities paves the way to the development of scalable circuits and devices based on optomechanical (OM) interaction of sound and light in extremely small volumes. In this contribution, we propose a new study on OM cavities that can lead to precise control of their coupling with closely integrated waveguides, a necessary condition to enhance mode excitation and wave energy trapping, opening the possibility for many potential applications in wave guiding, filtering, confinement, and sensing. Moreover, in this way the need for bulky experimental setups and/or optical fiber coupling/excitation is avoided. At the same time, quality factors of mechanical and optical modes resonating in the cavity are optimized, together with their OM coupling coefficients: high confinement of both excitations is a prerequisite to enable their acousto-optic (AO) interaction. To this aim, the transversal size of the cavity has been parabolically tapered, with the additional benefit of separating the cavity and the integrated waveguide far from the coupling region. The finite-element method has been used to perform full-wave analysis, and an accurate discussion about the simulation setup needed to properly describe optical scattering and radiation has been provided.https://www.mdpi.com/2304-6732/7/3/67opto mechanical interactionphotonic cavityphononic cavity |
| spellingShingle | Abdellatif Gueddida Bahram Djafari Rouhani Yan Pennec Andrea Di Donato Luca Pierantoni Alexander Korovin Davide Mencarelli Coupling of Integrated Waveguide and Optomechanic Cavity for Microwave Phonon Excitation in Si Nanobeams Photonics opto mechanical interaction photonic cavity phononic cavity |
| title | Coupling of Integrated Waveguide and Optomechanic Cavity for Microwave Phonon Excitation in Si Nanobeams |
| title_full | Coupling of Integrated Waveguide and Optomechanic Cavity for Microwave Phonon Excitation in Si Nanobeams |
| title_fullStr | Coupling of Integrated Waveguide and Optomechanic Cavity for Microwave Phonon Excitation in Si Nanobeams |
| title_full_unstemmed | Coupling of Integrated Waveguide and Optomechanic Cavity for Microwave Phonon Excitation in Si Nanobeams |
| title_short | Coupling of Integrated Waveguide and Optomechanic Cavity for Microwave Phonon Excitation in Si Nanobeams |
| title_sort | coupling of integrated waveguide and optomechanic cavity for microwave phonon excitation in si nanobeams |
| topic | opto mechanical interaction photonic cavity phononic cavity |
| url | https://www.mdpi.com/2304-6732/7/3/67 |
| work_keys_str_mv | AT abdellatifgueddida couplingofintegratedwaveguideandoptomechaniccavityformicrowavephononexcitationinsinanobeams AT bahramdjafarirouhani couplingofintegratedwaveguideandoptomechaniccavityformicrowavephononexcitationinsinanobeams AT yanpennec couplingofintegratedwaveguideandoptomechaniccavityformicrowavephononexcitationinsinanobeams AT andreadidonato couplingofintegratedwaveguideandoptomechaniccavityformicrowavephononexcitationinsinanobeams AT lucapierantoni couplingofintegratedwaveguideandoptomechaniccavityformicrowavephononexcitationinsinanobeams AT alexanderkorovin couplingofintegratedwaveguideandoptomechaniccavityformicrowavephononexcitationinsinanobeams AT davidemencarelli couplingofintegratedwaveguideandoptomechaniccavityformicrowavephononexcitationinsinanobeams |