Sub-picosecond biphasic ultrafast all-optical switching in ultraviolet band
Ultrafast all-optical control has been a subject of wide-spread attention as a method of manipulating optical fields using light excitation on extremely short time scales. As a fundamental form of ultrafast all-optical control, all-optical switching has achieved sub-picosecond switch speeds in the v...
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| Format: | Article |
| Language: | English |
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De Gruyter
2024-10-01
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| Series: | Nanophotonics |
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| Online Access: | https://doi.org/10.1515/nanoph-2024-0415 |
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| author | Dong Xiaoxiang He Yonglin Zhu Tao Gao Renxian Hu Lingyun Li Jiayu Ren Peiwen Li Jian-Feng Li Ming-De Yang Zhilin |
| author_facet | Dong Xiaoxiang He Yonglin Zhu Tao Gao Renxian Hu Lingyun Li Jiayu Ren Peiwen Li Jian-Feng Li Ming-De Yang Zhilin |
| author_sort | Dong Xiaoxiang |
| collection | DOAJ |
| description | Ultrafast all-optical control has been a subject of wide-spread attention as a method of manipulating optical fields using light excitation on extremely short time scales. As a fundamental form of ultrafast all-optical control, all-optical switching has achieved sub-picosecond switch speeds in the visible, infrared, and terahertz spectral regions. However, due to the lack of suitable materials, ultrafast all-optical control in the ultraviolet range remains in its early stages. We demonstrate sub-picosecond all-optical switching in the ultraviolet wavelength by designing a Si3N4-ITO Fabry–Pérot resonance aligns with the edge of the interband transition region of ITO. The response time of 500 fs achieved at a pump fluence as low as 0.17 mJ/cm2. Notably, unlike conventional binary switches (0, 1), this biphasic all-optical switch enables the modulation of optical intensity with positive, zero, and negative ΔR/R (0, 1, −1) at the same wavelength, all achieved with a switching speed of 680 fs at a pump fluence of 0.45 mJ/cm2. This work establishing a new pathway for all-optical control in the ultraviolet spectrum, the biphasic switch provides an extra degree of freedom for all-optical modulation. |
| format | Article |
| id | doaj-art-d703710de8cc4ce0ac18a86506b4e1a5 |
| institution | Kabale University |
| issn | 2192-8614 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj-art-d703710de8cc4ce0ac18a86506b4e1a52025-02-10T13:24:47ZengDe GruyterNanophotonics2192-86142024-10-0113244451445810.1515/nanoph-2024-0415Sub-picosecond biphasic ultrafast all-optical switching in ultraviolet bandDong Xiaoxiang0He Yonglin1Zhu Tao2Gao Renxian3Hu Lingyun4Li Jiayu5Ren Peiwen6Li Jian-Feng7Li Ming-De8Yang Zhilin9College of Physical Science and Technology, State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen361005, ChinaCollege of Physical Science and Technology, State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen361005, ChinaCollege of Physical Science and Technology, State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen361005, ChinaCollege of Physical Science and Technology, State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen361005, ChinaCollege of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen361005, ChinaDepartment of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong515063, P.R. ChinaCollege of Physical Science and Technology, State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen361005, ChinaCollege of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen361005, ChinaDepartment of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong515063, P.R. ChinaCollege of Physical Science and Technology, State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen361005, ChinaUltrafast all-optical control has been a subject of wide-spread attention as a method of manipulating optical fields using light excitation on extremely short time scales. As a fundamental form of ultrafast all-optical control, all-optical switching has achieved sub-picosecond switch speeds in the visible, infrared, and terahertz spectral regions. However, due to the lack of suitable materials, ultrafast all-optical control in the ultraviolet range remains in its early stages. We demonstrate sub-picosecond all-optical switching in the ultraviolet wavelength by designing a Si3N4-ITO Fabry–Pérot resonance aligns with the edge of the interband transition region of ITO. The response time of 500 fs achieved at a pump fluence as low as 0.17 mJ/cm2. Notably, unlike conventional binary switches (0, 1), this biphasic all-optical switch enables the modulation of optical intensity with positive, zero, and negative ΔR/R (0, 1, −1) at the same wavelength, all achieved with a switching speed of 680 fs at a pump fluence of 0.45 mJ/cm2. This work establishing a new pathway for all-optical control in the ultraviolet spectrum, the biphasic switch provides an extra degree of freedom for all-optical modulation.https://doi.org/10.1515/nanoph-2024-0415ultrafastall-optical switchingultravioletbiphasic |
| spellingShingle | Dong Xiaoxiang He Yonglin Zhu Tao Gao Renxian Hu Lingyun Li Jiayu Ren Peiwen Li Jian-Feng Li Ming-De Yang Zhilin Sub-picosecond biphasic ultrafast all-optical switching in ultraviolet band Nanophotonics ultrafast all-optical switching ultraviolet biphasic |
| title | Sub-picosecond biphasic ultrafast all-optical switching in ultraviolet band |
| title_full | Sub-picosecond biphasic ultrafast all-optical switching in ultraviolet band |
| title_fullStr | Sub-picosecond biphasic ultrafast all-optical switching in ultraviolet band |
| title_full_unstemmed | Sub-picosecond biphasic ultrafast all-optical switching in ultraviolet band |
| title_short | Sub-picosecond biphasic ultrafast all-optical switching in ultraviolet band |
| title_sort | sub picosecond biphasic ultrafast all optical switching in ultraviolet band |
| topic | ultrafast all-optical switching ultraviolet biphasic |
| url | https://doi.org/10.1515/nanoph-2024-0415 |
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