High Q factor modes in semiconductor nanoantennas for active nanophotonics and lasing
On-chip light sources are critical for the realization of fully integrated photonic circuitry. So far, semiconductor miniaturized lasers have been mainly limited to sizes on the order of a few microns. Further reduction of sizes is challenging fundamentally due to the associated radiative losses. Wh...
| Hovedforfatter: | |
|---|---|
| Andre forfattere: | |
| Format: | Thesis-Doctor of Philosophy |
| Sprog: | English |
| Udgivet: |
Nanyang Technological University
2021
|
| Fag: | |
| Online adgang: | https://hdl.handle.net/10356/146247 |
| _version_ | 1826109910403776512 |
|---|---|
| author | Mylnikov, Vasilii |
| author2 | Hilmi Volkan Demir |
| author_facet | Hilmi Volkan Demir Mylnikov, Vasilii |
| author_sort | Mylnikov, Vasilii |
| collection | NTU |
| description | On-chip light sources are critical for the realization of fully integrated photonic circuitry. So far, semiconductor miniaturized lasers have been mainly limited to sizes on the order of a few microns. Further reduction of sizes is challenging fundamentally due to the associated radiative losses. While using plasmonic metals helps to reduce radiative losses and sizes, they also introduce Ohmic losses hindering real improvements. Here, we circumvent these fundamental issues using quasi-bound states in the continuum or supercavity modes and realize one of the smallest purely semiconductor nanolasers thus far. Coupling between a nanoparticle and a waveguide is studied as an extension of the original work. Multiple-particle 1D configurations, operating in lower azimuthal order modes, are optimized numerically and studied experimentally. The obtained results open a way for the realization of smaller low-loss dielectric nanolasers that might find applications in future photonic circuitry, among others. |
| first_indexed | 2024-10-01T02:26:07Z |
| format | Thesis-Doctor of Philosophy |
| id | ntu-10356/146247 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:26:07Z |
| publishDate | 2021 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1462472023-07-04T16:50:14Z High Q factor modes in semiconductor nanoantennas for active nanophotonics and lasing Mylnikov, Vasilii Hilmi Volkan Demir School of Electrical and Electronic Engineering Agency for Science, Technology and Research (A*STAR) LUMINOUS! Centre of Excellence for Semiconductor Lighting & Displays HVDEMIR@ntu.edu.sg Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Engineering::Nanotechnology On-chip light sources are critical for the realization of fully integrated photonic circuitry. So far, semiconductor miniaturized lasers have been mainly limited to sizes on the order of a few microns. Further reduction of sizes is challenging fundamentally due to the associated radiative losses. While using plasmonic metals helps to reduce radiative losses and sizes, they also introduce Ohmic losses hindering real improvements. Here, we circumvent these fundamental issues using quasi-bound states in the continuum or supercavity modes and realize one of the smallest purely semiconductor nanolasers thus far. Coupling between a nanoparticle and a waveguide is studied as an extension of the original work. Multiple-particle 1D configurations, operating in lower azimuthal order modes, are optimized numerically and studied experimentally. The obtained results open a way for the realization of smaller low-loss dielectric nanolasers that might find applications in future photonic circuitry, among others. Doctor of Philosophy 2021-02-04T02:24:19Z 2021-02-04T02:24:19Z 2021 Thesis-Doctor of Philosophy Mylnikov, V. (2021). High Q factor modes in semiconductor nanoantennas for active nanophotonics and lasing. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/146247 10.32657/10356/146247 en This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Engineering::Nanotechnology Mylnikov, Vasilii High Q factor modes in semiconductor nanoantennas for active nanophotonics and lasing |
| title | High Q factor modes in semiconductor nanoantennas for active nanophotonics and lasing |
| title_full | High Q factor modes in semiconductor nanoantennas for active nanophotonics and lasing |
| title_fullStr | High Q factor modes in semiconductor nanoantennas for active nanophotonics and lasing |
| title_full_unstemmed | High Q factor modes in semiconductor nanoantennas for active nanophotonics and lasing |
| title_short | High Q factor modes in semiconductor nanoantennas for active nanophotonics and lasing |
| title_sort | high q factor modes in semiconductor nanoantennas for active nanophotonics and lasing |
| topic | Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Engineering::Nanotechnology |
| url | https://hdl.handle.net/10356/146247 |
| work_keys_str_mv | AT mylnikovvasilii highqfactormodesinsemiconductornanoantennasforactivenanophotonicsandlasing |