Ultra-broadband Optical Switching Plasmons Waveguide in Ge Nanowires
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arXiv
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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866917610433544192 |
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| author | Liu, Xinghui Chang, Kaili Guo, Jiarong Xue, Mengfei Zhou, Ran Chen, Ke Chen, Jianing |
| author_facet | Liu, Xinghui Chang, Kaili Guo, Jiarong Xue, Mengfei Zhou, Ran Chen, Ke Chen, Jianing |
| contents | Plasmonic devices, with their ultra-high integration density and data-carrying capacity comparable to optical devices, are currently a hot topic in the field of nanophotonic devices. Photodetectors, non-volatile memories, and ultra-compact lasers based on plasmons in low-dimensional materials are emerging at a rapid pace. However, the narrow optical response band and limited of convenient tunable methods currently available have hindered the development of these plasmonic materials. Here, we report a ultrabroadband non-equilibrium plasmonic responses based on Ge nanowires tuned by optical method. We tracked the blue shift of the plasmonic response of Ge nanowires due to photo-induced carriers over an ultra-broad spectral range of 800-2000 $cm^{-1}$. For the first time, we have achieved the imaging of propagating surface plasmon polaritons (SPPs) in semiconductor nanowires, which were tuned by photo-induced carriers. The ultrafast and ultrabroadband response of semiconductor nanowire plasmons is of great significance for future ultrafast all-optical devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_06596 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Ultra-broadband Optical Switching Plasmons Waveguide in Ge Nanowires Liu, Xinghui Chang, Kaili Guo, Jiarong Xue, Mengfei Zhou, Ran Chen, Ke Chen, Jianing Optics Plasmonic devices, with their ultra-high integration density and data-carrying capacity comparable to optical devices, are currently a hot topic in the field of nanophotonic devices. Photodetectors, non-volatile memories, and ultra-compact lasers based on plasmons in low-dimensional materials are emerging at a rapid pace. However, the narrow optical response band and limited of convenient tunable methods currently available have hindered the development of these plasmonic materials. Here, we report a ultrabroadband non-equilibrium plasmonic responses based on Ge nanowires tuned by optical method. We tracked the blue shift of the plasmonic response of Ge nanowires due to photo-induced carriers over an ultra-broad spectral range of 800-2000 $cm^{-1}$. For the first time, we have achieved the imaging of propagating surface plasmon polaritons (SPPs) in semiconductor nanowires, which were tuned by photo-induced carriers. The ultrafast and ultrabroadband response of semiconductor nanowire plasmons is of great significance for future ultrafast all-optical devices. |
| title | Ultra-broadband Optical Switching Plasmons Waveguide in Ge Nanowires |
| topic | Optics |
| url | https://arxiv.org/abs/2403.06596 |