All-optical switch exploiting Fano resonance and subwavelength light confinement
We propose and experimentally demonstrate a small-mode volume bowtie cavity design for all-optical switching applications using a waveguide-cavity structure that exploits asymmetric Fano resonance lineshapes. The bowtie cavity has a mode volume that is five times smaller than conventional (H0-type)...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2025-02-01
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| Series: | Nanophotonics |
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| Online Access: | https://doi.org/10.1515/nanoph-2024-0644 |
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| _version_ | 1849700077715587072 |
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| author | Saudan Quentin Bekele Dagmawi A. Xiong Meng Yvind Kresten Galili Michael Mørk Jesper |
| author_facet | Saudan Quentin Bekele Dagmawi A. Xiong Meng Yvind Kresten Galili Michael Mørk Jesper |
| author_sort | Saudan Quentin |
| collection | DOAJ |
| description | We propose and experimentally demonstrate a small-mode volume bowtie cavity design for all-optical switching applications using a waveguide-cavity structure that exploits asymmetric Fano resonance lineshapes. The bowtie cavity has a mode volume that is five times smaller than conventional (H0-type) photonic crystal point-defect cavities enabling higher nonlinearity and faster switching. Blue and red-detuned Fano resonant devices based on bowtie cavity designs have been fabricated and characterized. Measured linear transmission spectra have been compared to coupled-mode theory models to extract key parameters such as Q-factors. Furthermore, all-optical switching at 2.5 Gbps have been demonstrated in a wavelength-conversion experiment. |
| format | Article |
| id | doaj-art-eaaa8aa3b6aa4dbe843a07759c96a875 |
| institution | DOAJ |
| issn | 2192-8614 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj-art-eaaa8aa3b6aa4dbe843a07759c96a8752025-08-20T03:18:23ZengDe GruyterNanophotonics2192-86142025-02-0114101625163310.1515/nanoph-2024-0644All-optical switch exploiting Fano resonance and subwavelength light confinementSaudan Quentin0Bekele Dagmawi A.1Xiong Meng2Yvind Kresten3Galili Michael4Mørk Jesper5DTU Electro, Technical University of Denmark, DK-2800Kongens Lyngby, DenmarkPhanofi ApS, DK-2800Kongens Lyngby, DenmarkDTU Electro, Technical University of Denmark, DK-2800Kongens Lyngby, DenmarkDTU Electro, Technical University of Denmark, DK-2800Kongens Lyngby, DenmarkDTU Electro, Technical University of Denmark, DK-2800Kongens Lyngby, DenmarkDTU Electro, Technical University of Denmark, DK-2800Kongens Lyngby, DenmarkWe propose and experimentally demonstrate a small-mode volume bowtie cavity design for all-optical switching applications using a waveguide-cavity structure that exploits asymmetric Fano resonance lineshapes. The bowtie cavity has a mode volume that is five times smaller than conventional (H0-type) photonic crystal point-defect cavities enabling higher nonlinearity and faster switching. Blue and red-detuned Fano resonant devices based on bowtie cavity designs have been fabricated and characterized. Measured linear transmission spectra have been compared to coupled-mode theory models to extract key parameters such as Q-factors. Furthermore, all-optical switching at 2.5 Gbps have been demonstrated in a wavelength-conversion experiment.https://doi.org/10.1515/nanoph-2024-0644nanophotonicsnanocavityfano resonanceoptical switchingextreme light confinement |
| spellingShingle | Saudan Quentin Bekele Dagmawi A. Xiong Meng Yvind Kresten Galili Michael Mørk Jesper All-optical switch exploiting Fano resonance and subwavelength light confinement Nanophotonics nanophotonics nanocavity fano resonance optical switching extreme light confinement |
| title | All-optical switch exploiting Fano resonance and subwavelength light confinement |
| title_full | All-optical switch exploiting Fano resonance and subwavelength light confinement |
| title_fullStr | All-optical switch exploiting Fano resonance and subwavelength light confinement |
| title_full_unstemmed | All-optical switch exploiting Fano resonance and subwavelength light confinement |
| title_short | All-optical switch exploiting Fano resonance and subwavelength light confinement |
| title_sort | all optical switch exploiting fano resonance and subwavelength light confinement |
| topic | nanophotonics nanocavity fano resonance optical switching extreme light confinement |
| url | https://doi.org/10.1515/nanoph-2024-0644 |
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