Electrically tunable plasmonic metasurface as a matrix of nanoantennas
We report the fabrication and characterization of a plasmonic metasurface comprising electrically-contacted sub-wavelength gold dipole nanoantennas, conformally coated by a thin hafnia film, an indium tin oxide layer and a backside mirror, forming metal–oxide–semiconductor (MOS) capacitors, for use...
Saved in:
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2024-02-01
|
| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2023-0796 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850159209201532928 |
|---|---|
| author | Mayoral Astorga Luis Angel Shabaninezhad Masoud Northfield Howard Ntais Spyridon Rashid Sabaa Lisicka-Skrzek Ewa Mehrvar Hamid Bernier Eric Goodwill Dominic Ramunno Lora Berini Pierre |
| author_facet | Mayoral Astorga Luis Angel Shabaninezhad Masoud Northfield Howard Ntais Spyridon Rashid Sabaa Lisicka-Skrzek Ewa Mehrvar Hamid Bernier Eric Goodwill Dominic Ramunno Lora Berini Pierre |
| author_sort | Mayoral Astorga Luis Angel |
| collection | DOAJ |
| description | We report the fabrication and characterization of a plasmonic metasurface comprising electrically-contacted sub-wavelength gold dipole nanoantennas, conformally coated by a thin hafnia film, an indium tin oxide layer and a backside mirror, forming metal–oxide–semiconductor (MOS) capacitors, for use as an electrically-tunable reflectarray or metasurface. By voltage biasing the nanoantennas through metallic connectors and leveraging the carrier refraction effect in the MOS capacitors, our measurements demonstrate phase control in reflection over a range of about 30°, with a constant magnitude of reflection coefficient of 0.5, and the absence of secondary lobes. Comprehensive electromagnetic and quantum carrier models of the structure are developed and are in excellent agreement with the measurements. The metasurface holds promise for use as an optical phased array. |
| format | Article |
| id | doaj-art-2eb93d0e34c344ceadf1a54640ee08c7 |
| institution | OA Journals |
| issn | 2192-8614 |
| language | English |
| publishDate | 2024-02-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj-art-2eb93d0e34c344ceadf1a54640ee08c72025-08-20T02:23:36ZengDe GruyterNanophotonics2192-86142024-02-0113690191310.1515/nanoph-2023-0796Electrically tunable plasmonic metasurface as a matrix of nanoantennasMayoral Astorga Luis Angel0Shabaninezhad Masoud1Northfield Howard2Ntais Spyridon3Rashid Sabaa4Lisicka-Skrzek Ewa5Mehrvar Hamid6Bernier Eric7Goodwill Dominic8Ramunno Lora9Berini Pierre10School of Electrical Engineering and Computer Science, 6363University of Ottawa, Ottawa, ONK1N 6N5, CanadaSchool of Electrical Engineering and Computer Science, 6363University of Ottawa, Ottawa, ONK1N 6N5, CanadaSchool of Electrical Engineering and Computer Science, 6363University of Ottawa, Ottawa, ONK1N 6N5, CanadaSchool of Electrical Engineering and Computer Science, 6363University of Ottawa, Ottawa, ONK1N 6N5, CanadaSchool of Electrical Engineering and Computer Science, 6363University of Ottawa, Ottawa, CanadaSchool of Electrical Engineering and Computer Science, 6363University of Ottawa, Ottawa, ONK1N 6N5, CanadaHuawei Technologies Canada, Ottawa, CanadaHuawei Technologies Canada, Ottawa, CanadaHuawei Technologies Canada, Ottawa, Canada6363NEXQT Institute, University of Ottawa, 25 Templeton Street, Ottawa, OntarioK1N 6N5, CanadaSchool of Electrical Engineering and Computer Science, 6363University of Ottawa, Ottawa, ONK1N 6N5, CanadaWe report the fabrication and characterization of a plasmonic metasurface comprising electrically-contacted sub-wavelength gold dipole nanoantennas, conformally coated by a thin hafnia film, an indium tin oxide layer and a backside mirror, forming metal–oxide–semiconductor (MOS) capacitors, for use as an electrically-tunable reflectarray or metasurface. By voltage biasing the nanoantennas through metallic connectors and leveraging the carrier refraction effect in the MOS capacitors, our measurements demonstrate phase control in reflection over a range of about 30°, with a constant magnitude of reflection coefficient of 0.5, and the absence of secondary lobes. Comprehensive electromagnetic and quantum carrier models of the structure are developed and are in excellent agreement with the measurements. The metasurface holds promise for use as an optical phased array.https://doi.org/10.1515/nanoph-2023-0796opticalreflectarrayplasmonicsmetasurfaceindium tin oxidephased array |
| spellingShingle | Mayoral Astorga Luis Angel Shabaninezhad Masoud Northfield Howard Ntais Spyridon Rashid Sabaa Lisicka-Skrzek Ewa Mehrvar Hamid Bernier Eric Goodwill Dominic Ramunno Lora Berini Pierre Electrically tunable plasmonic metasurface as a matrix of nanoantennas Nanophotonics optical reflectarray plasmonics metasurface indium tin oxide phased array |
| title | Electrically tunable plasmonic metasurface as a matrix of nanoantennas |
| title_full | Electrically tunable plasmonic metasurface as a matrix of nanoantennas |
| title_fullStr | Electrically tunable plasmonic metasurface as a matrix of nanoantennas |
| title_full_unstemmed | Electrically tunable plasmonic metasurface as a matrix of nanoantennas |
| title_short | Electrically tunable plasmonic metasurface as a matrix of nanoantennas |
| title_sort | electrically tunable plasmonic metasurface as a matrix of nanoantennas |
| topic | optical reflectarray plasmonics metasurface indium tin oxide phased array |
| url | https://doi.org/10.1515/nanoph-2023-0796 |
| work_keys_str_mv | AT mayoralastorgaluisangel electricallytunableplasmonicmetasurfaceasamatrixofnanoantennas AT shabaninezhadmasoud electricallytunableplasmonicmetasurfaceasamatrixofnanoantennas AT northfieldhoward electricallytunableplasmonicmetasurfaceasamatrixofnanoantennas AT ntaisspyridon electricallytunableplasmonicmetasurfaceasamatrixofnanoantennas AT rashidsabaa electricallytunableplasmonicmetasurfaceasamatrixofnanoantennas AT lisickaskrzekewa electricallytunableplasmonicmetasurfaceasamatrixofnanoantennas AT mehrvarhamid electricallytunableplasmonicmetasurfaceasamatrixofnanoantennas AT berniereric electricallytunableplasmonicmetasurfaceasamatrixofnanoantennas AT goodwilldominic electricallytunableplasmonicmetasurfaceasamatrixofnanoantennas AT ramunnolora electricallytunableplasmonicmetasurfaceasamatrixofnanoantennas AT berinipierre electricallytunableplasmonicmetasurfaceasamatrixofnanoantennas |