Surface acoustic wave actuated plasmonic signal amplification in a plasmonic waveguide
Abstract Enhancement of nanoscale confinement in the subwavelength waveguide is a concern for advancing future photonic interconnects. Rigorous innovation of plasmonic waveguide-based structure is crucial in designing a reliable on-chip optical waveguide beyond the diffraction limit. Despite several...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer
2024-01-01
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| Series: | Discover Nano |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s11671-023-03951-0 |
| _version_ | 1797355589859278848 |
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| author | Rohit Gupta Kuntal Barman Liang-Yun Lee Anuj Chauhan Jian-Jang Huang |
| author_facet | Rohit Gupta Kuntal Barman Liang-Yun Lee Anuj Chauhan Jian-Jang Huang |
| author_sort | Rohit Gupta |
| collection | DOAJ |
| description | Abstract Enhancement of nanoscale confinement in the subwavelength waveguide is a concern for advancing future photonic interconnects. Rigorous innovation of plasmonic waveguide-based structure is crucial in designing a reliable on-chip optical waveguide beyond the diffraction limit. Despite several structural modifications and architectural improvements, the plasmonic waveguide technology is far from reaching its maximum potential for mass-scale applications due to persistence issues such as insufficient confined energy and short propagation length. This work proposes a new method to amplify the propagating plasmons through an external on-chip surface acoustic signal. The gold–silicon dioxide (Au-SiO2) interface, over Lithium Niobate (LN) substrate, is used to excite propagating surface plasmons. The voltage-varying surface acoustic wave (SAW) can tune the plasmonic confinement to a desired signal energy level, enhancing and modulating the plasmonic intensity. From our experimental results, we can increase the plasmonic intensity gain of 1.08 dB by providing an external excitation in the form of SAW at a peak-to-peak potential swing of 3 V, utilizing a single chip. |
| first_indexed | 2024-03-08T14:13:19Z |
| format | Article |
| id | doaj.art-957155675f75405db5a71ccf58a6c9dd |
| institution | Directory Open Access Journal |
| issn | 2731-9229 |
| language | English |
| last_indexed | 2024-03-08T14:13:19Z |
| publishDate | 2024-01-01 |
| publisher | Springer |
| record_format | Article |
| series | Discover Nano |
| spelling | doaj.art-957155675f75405db5a71ccf58a6c9dd2024-01-14T12:33:37ZengSpringerDiscover Nano2731-92292024-01-0119111410.1186/s11671-023-03951-0Surface acoustic wave actuated plasmonic signal amplification in a plasmonic waveguideRohit Gupta0Kuntal Barman1Liang-Yun Lee2Anuj Chauhan3Jian-Jang Huang4Graduate Institute of Photonics and Optoelectronics, National Taiwan UniversityGraduate Institute of Photonics and Optoelectronics, National Taiwan UniversityGraduate Institute of Photonics and Optoelectronics, National Taiwan UniversityGraduate Institute of Photonics and Optoelectronics, National Taiwan UniversityGraduate Institute of Photonics and Optoelectronics, National Taiwan UniversityAbstract Enhancement of nanoscale confinement in the subwavelength waveguide is a concern for advancing future photonic interconnects. Rigorous innovation of plasmonic waveguide-based structure is crucial in designing a reliable on-chip optical waveguide beyond the diffraction limit. Despite several structural modifications and architectural improvements, the plasmonic waveguide technology is far from reaching its maximum potential for mass-scale applications due to persistence issues such as insufficient confined energy and short propagation length. This work proposes a new method to amplify the propagating plasmons through an external on-chip surface acoustic signal. The gold–silicon dioxide (Au-SiO2) interface, over Lithium Niobate (LN) substrate, is used to excite propagating surface plasmons. The voltage-varying surface acoustic wave (SAW) can tune the plasmonic confinement to a desired signal energy level, enhancing and modulating the plasmonic intensity. From our experimental results, we can increase the plasmonic intensity gain of 1.08 dB by providing an external excitation in the form of SAW at a peak-to-peak potential swing of 3 V, utilizing a single chip.https://doi.org/10.1186/s11671-023-03951-0Surface plasmon polaritonsPlasmonic waveguideInter-digital transducerSurface acoustic wave |
| spellingShingle | Rohit Gupta Kuntal Barman Liang-Yun Lee Anuj Chauhan Jian-Jang Huang Surface acoustic wave actuated plasmonic signal amplification in a plasmonic waveguide Discover Nano Surface plasmon polaritons Plasmonic waveguide Inter-digital transducer Surface acoustic wave |
| title | Surface acoustic wave actuated plasmonic signal amplification in a plasmonic waveguide |
| title_full | Surface acoustic wave actuated plasmonic signal amplification in a plasmonic waveguide |
| title_fullStr | Surface acoustic wave actuated plasmonic signal amplification in a plasmonic waveguide |
| title_full_unstemmed | Surface acoustic wave actuated plasmonic signal amplification in a plasmonic waveguide |
| title_short | Surface acoustic wave actuated plasmonic signal amplification in a plasmonic waveguide |
| title_sort | surface acoustic wave actuated plasmonic signal amplification in a plasmonic waveguide |
| topic | Surface plasmon polaritons Plasmonic waveguide Inter-digital transducer Surface acoustic wave |
| url | https://doi.org/10.1186/s11671-023-03951-0 |
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