Enhancement of Raman scattering in dielectric nanostructures with electric and magnetic Mie resonances
Resonantly enhanced Raman scattering in dielectric nanostructures has been recently proven to be an efficient tool for nanothermometry and for the experimental determination of their mode composition. In this paper we develop a rigorous analytical theory based on the Green's function approach t...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | English |
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2018
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| Online Access: | https://hdl.handle.net/10356/89967 http://hdl.handle.net/10220/46429 |
| _version_ | 1824454542482210816 |
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| author | Frizyuk, Kristina Hasan, Mehedi Krasnok, Alex Alú, Andrea Petrov, Mihail |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Frizyuk, Kristina Hasan, Mehedi Krasnok, Alex Alú, Andrea Petrov, Mihail |
| author_sort | Frizyuk, Kristina |
| collection | NTU |
| description | Resonantly enhanced Raman scattering in dielectric nanostructures has been recently proven to be an efficient tool for nanothermometry and for the experimental determination of their mode composition. In this paper we develop a rigorous analytical theory based on the Green's function approach to calculate the Raman emission from crystalline high-index dielectric nanoparticles. As an example, we consider silicon nanoparticles which have a strong Raman response due to active optical phonon modes. We relate enhancement of Raman signal emission to the Purcell effect due to the excitation of Mie modes inside the nanoparticles. We also employ our numerical approach to calculate inelastic Raman emission in more sophisticated geometries, which do not allow a straightforward analytical form of the Green's function. The Raman response from a silicon nanodisk has been analyzed with the proposed method, and the contribution of various Mie modes has been revealed. |
| first_indexed | 2025-02-19T03:23:58Z |
| format | Journal Article |
| id | ntu-10356/89967 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:23:58Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/899672023-02-28T19:24:03Z Enhancement of Raman scattering in dielectric nanostructures with electric and magnetic Mie resonances Frizyuk, Kristina Hasan, Mehedi Krasnok, Alex Alú, Andrea Petrov, Mihail School of Physical and Mathematical Sciences Nanophotonics Mie Scattering DRNTU::Science::Physics Resonantly enhanced Raman scattering in dielectric nanostructures has been recently proven to be an efficient tool for nanothermometry and for the experimental determination of their mode composition. In this paper we develop a rigorous analytical theory based on the Green's function approach to calculate the Raman emission from crystalline high-index dielectric nanoparticles. As an example, we consider silicon nanoparticles which have a strong Raman response due to active optical phonon modes. We relate enhancement of Raman signal emission to the Purcell effect due to the excitation of Mie modes inside the nanoparticles. We also employ our numerical approach to calculate inelastic Raman emission in more sophisticated geometries, which do not allow a straightforward analytical form of the Green's function. The Raman response from a silicon nanodisk has been analyzed with the proposed method, and the contribution of various Mie modes has been revealed. Published version 2018-10-25T04:11:21Z 2019-12-06T17:37:39Z 2018-10-25T04:11:21Z 2019-12-06T17:37:39Z 2018 Journal Article Frizyuk, K., Hasan, M., Krasnok, A., Alú, A., & Petrov, M. (2018). Enhancement of Raman scattering in dielectric nanostructures with electric and magnetic Mie resonances. Physical Review B, 97(8), 085414-. doi:10.1103/PhysRevB.97.085414 2469-9950 https://hdl.handle.net/10356/89967 http://hdl.handle.net/10220/46429 10.1103/PhysRevB.97.085414 en Physical Review B © 2018 American Physical Society (APS). This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society (APS). The published version is available at: [http://dx.doi.org/10.1103/PhysRevB.97.085414]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 8 p. application/pdf |
| spellingShingle | Nanophotonics Mie Scattering DRNTU::Science::Physics Frizyuk, Kristina Hasan, Mehedi Krasnok, Alex Alú, Andrea Petrov, Mihail Enhancement of Raman scattering in dielectric nanostructures with electric and magnetic Mie resonances |
| title | Enhancement of Raman scattering in dielectric nanostructures with electric and magnetic Mie resonances |
| title_full | Enhancement of Raman scattering in dielectric nanostructures with electric and magnetic Mie resonances |
| title_fullStr | Enhancement of Raman scattering in dielectric nanostructures with electric and magnetic Mie resonances |
| title_full_unstemmed | Enhancement of Raman scattering in dielectric nanostructures with electric and magnetic Mie resonances |
| title_short | Enhancement of Raman scattering in dielectric nanostructures with electric and magnetic Mie resonances |
| title_sort | enhancement of raman scattering in dielectric nanostructures with electric and magnetic mie resonances |
| topic | Nanophotonics Mie Scattering DRNTU::Science::Physics |
| url | https://hdl.handle.net/10356/89967 http://hdl.handle.net/10220/46429 |
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