A low-loss molybdenum plasmonic waveguide: perfect single-crystal preparation and subwavelength grating optimization
Plasmonic waveguides have attracted tremendous interest due to efficiently confining photons on the subwavelength spatial scale to be beating the propagation diffraction limit. Transition metal molybdenum (Mo) exhibits outstanding properties in light trapping and electromagnetic field confining, mak...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2023-10-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2023-0480 |
| _version_ | 1797323438788968448 |
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| author | Cui Tao Shen Yan Cheng Ao Zhan Runze Zheng Zebo Tian Bo Shi Jia Ke Yanlin Shao Lei Chen Huanjun Deng Shaozhi |
| author_facet | Cui Tao Shen Yan Cheng Ao Zhan Runze Zheng Zebo Tian Bo Shi Jia Ke Yanlin Shao Lei Chen Huanjun Deng Shaozhi |
| author_sort | Cui Tao |
| collection | DOAJ |
| description | Plasmonic waveguides have attracted tremendous interest due to efficiently confining photons on the subwavelength spatial scale to be beating the propagation diffraction limit. Transition metal molybdenum (Mo) exhibits outstanding properties in light trapping and electromagnetic field confining, making it potentially valuable in 1.55 μm plasmonic waveguide applications. However, the reliable fabrication of high-quality Mo plasmonic waveguides is a significant challenge. A real-space micro-imaging study of the surface plasmon on Mo structures is still absent. In this study, we successfully prepared a single-crystalline Mo microrod waveguide structure and fabricated subwavelength gratings on it. The diffraction gratings were designed, optimized, and etched to excite the surface plasmon polariton behaviour of Mo for the first time. The grating-optimized Mo microrod single-crystal reveals highly efficient waveguide performance around near-infrared spectroscopy, exhibiting a long propagation length of 32 μm and a low transmission loss of 0.067 dB μm−1. The results provide an alternative to advanced materials research and optical device applications of plasmonic waveguide systems. |
| first_indexed | 2024-03-08T05:28:41Z |
| format | Article |
| id | doaj.art-1e69c69ffd12437daed1e840dca2de20 |
| institution | Directory Open Access Journal |
| issn | 2192-8614 |
| language | English |
| last_indexed | 2024-03-08T05:28:41Z |
| publishDate | 2023-10-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-1e69c69ffd12437daed1e840dca2de202024-02-06T09:08:39ZengDe GruyterNanophotonics2192-86142023-10-0112224185419310.1515/nanoph-2023-0480A low-loss molybdenum plasmonic waveguide: perfect single-crystal preparation and subwavelength grating optimizationCui Tao0Shen Yan1Cheng Ao2Zhan Runze3Zheng Zebo4Tian Bo5Shi Jia6Ke Yanlin7Shao Lei8Chen Huanjun9Deng Shaozhi10State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou510275, ChinaState Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou510275, ChinaPlasmonic waveguides have attracted tremendous interest due to efficiently confining photons on the subwavelength spatial scale to be beating the propagation diffraction limit. Transition metal molybdenum (Mo) exhibits outstanding properties in light trapping and electromagnetic field confining, making it potentially valuable in 1.55 μm plasmonic waveguide applications. However, the reliable fabrication of high-quality Mo plasmonic waveguides is a significant challenge. A real-space micro-imaging study of the surface plasmon on Mo structures is still absent. In this study, we successfully prepared a single-crystalline Mo microrod waveguide structure and fabricated subwavelength gratings on it. The diffraction gratings were designed, optimized, and etched to excite the surface plasmon polariton behaviour of Mo for the first time. The grating-optimized Mo microrod single-crystal reveals highly efficient waveguide performance around near-infrared spectroscopy, exhibiting a long propagation length of 32 μm and a low transmission loss of 0.067 dB μm−1. The results provide an alternative to advanced materials research and optical device applications of plasmonic waveguide systems.https://doi.org/10.1515/nanoph-2023-0480plasmonic waveguidenear-infraredlow-loss propagationmolybdenum single-crystalsubwavelength grating |
| spellingShingle | Cui Tao Shen Yan Cheng Ao Zhan Runze Zheng Zebo Tian Bo Shi Jia Ke Yanlin Shao Lei Chen Huanjun Deng Shaozhi A low-loss molybdenum plasmonic waveguide: perfect single-crystal preparation and subwavelength grating optimization Nanophotonics plasmonic waveguide near-infrared low-loss propagation molybdenum single-crystal subwavelength grating |
| title | A low-loss molybdenum plasmonic waveguide: perfect single-crystal preparation and subwavelength grating optimization |
| title_full | A low-loss molybdenum plasmonic waveguide: perfect single-crystal preparation and subwavelength grating optimization |
| title_fullStr | A low-loss molybdenum plasmonic waveguide: perfect single-crystal preparation and subwavelength grating optimization |
| title_full_unstemmed | A low-loss molybdenum plasmonic waveguide: perfect single-crystal preparation and subwavelength grating optimization |
| title_short | A low-loss molybdenum plasmonic waveguide: perfect single-crystal preparation and subwavelength grating optimization |
| title_sort | low loss molybdenum plasmonic waveguide perfect single crystal preparation and subwavelength grating optimization |
| topic | plasmonic waveguide near-infrared low-loss propagation molybdenum single-crystal subwavelength grating |
| url | https://doi.org/10.1515/nanoph-2023-0480 |
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