Dielectric metasurface based polarization and orbital angular momentum demultiplexer
The development of high-speed optical communication calls for compatible multiplexing dimensions to enlarge transmission capacity and process optical information. Although vortex beam multiplexing has been previously demonstrated by exploiting the orthogonality of orbital angular momentum (OAM) mode...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379720321239 |
| _version_ | 1818737132326354944 |
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| author | Bo Yang Yanliang He Zhiqiang Xie Junmin Liu Huapeng Ye Jiangnan Xiao Ying Li Dianyuan Fan Shuqing Chen |
| author_facet | Bo Yang Yanliang He Zhiqiang Xie Junmin Liu Huapeng Ye Jiangnan Xiao Ying Li Dianyuan Fan Shuqing Chen |
| author_sort | Bo Yang |
| collection | DOAJ |
| description | The development of high-speed optical communication calls for compatible multiplexing dimensions to enlarge transmission capacity and process optical information. Although vortex beam multiplexing has been previously demonstrated by exploiting the orthogonality of orbital angular momentum (OAM) modes, the multidimensional demultiplexer remains elusive due to the limited phase and polarization manipulation capability. We introduce dielectric propagation phase metasurface based demultiplexers and investigate their application in simultaneously demultiplexing OAM and orthogonal linear polarization (OLP) channels. Utilizing the size-dependent anisotropy of dielectric rectangular nano-pillars, we reveal that the multimode fork grating phase masks with different off-axis phase items can be integrated on the same substrate with polarization selectivity, which allows simultaneously demultiplexing OAM and OLP channels. The demultiplexed position and the number of channels depend on its off-axis phase items, and a 16-channel (8-OAM modes and 2-polarization states) demultiplexer is demonstrated. The vortex beams with different OAM modes and OLP states are successfully demultiplexed with the maximum crosstalk is below −9.2 dB. Changing the number of superimposed complex amplitudes and the off-axis phase items in multimode fork grating phase masks, we further present two 12-channel demultiplexers with different channel distributions. Our results provide an approach that breaks the polarization-insensitive in manipulating OAM modes, introducing demultiplexers that apply to OAM mode and OLP states simultaneously. |
| first_indexed | 2024-12-18T00:48:11Z |
| format | Article |
| id | doaj.art-cf90049cefa847a2a15af5e24bc0cca8 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-18T00:48:11Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-cf90049cefa847a2a15af5e24bc0cca82022-12-21T21:26:45ZengElsevierResults in Physics2211-37972021-01-0120103706Dielectric metasurface based polarization and orbital angular momentum demultiplexerBo Yang0Yanliang He1Zhiqiang Xie2Junmin Liu3Huapeng Ye4Jiangnan Xiao5Ying Li6Dianyuan Fan7Shuqing Chen8International Collaborative Laboratory of 2D Materials for Optoelectronics Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, ChinaCollege of New Materials and New Energies, Shenzhen Technology University, Shenzhen 507738, ChinaGuangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, ChinaShanghai Key Laboratory of Modern Optical System, Terahertz Science Cooperative Innovation Center, School of Optical-Electrical Computer Engineering, Terahertz Technology Innovation Research Institute, University of Shanghai for Science and Technology, Shanghai 200093, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China; Corresponding authors.The development of high-speed optical communication calls for compatible multiplexing dimensions to enlarge transmission capacity and process optical information. Although vortex beam multiplexing has been previously demonstrated by exploiting the orthogonality of orbital angular momentum (OAM) modes, the multidimensional demultiplexer remains elusive due to the limited phase and polarization manipulation capability. We introduce dielectric propagation phase metasurface based demultiplexers and investigate their application in simultaneously demultiplexing OAM and orthogonal linear polarization (OLP) channels. Utilizing the size-dependent anisotropy of dielectric rectangular nano-pillars, we reveal that the multimode fork grating phase masks with different off-axis phase items can be integrated on the same substrate with polarization selectivity, which allows simultaneously demultiplexing OAM and OLP channels. The demultiplexed position and the number of channels depend on its off-axis phase items, and a 16-channel (8-OAM modes and 2-polarization states) demultiplexer is demonstrated. The vortex beams with different OAM modes and OLP states are successfully demultiplexed with the maximum crosstalk is below −9.2 dB. Changing the number of superimposed complex amplitudes and the off-axis phase items in multimode fork grating phase masks, we further present two 12-channel demultiplexers with different channel distributions. Our results provide an approach that breaks the polarization-insensitive in manipulating OAM modes, introducing demultiplexers that apply to OAM mode and OLP states simultaneously.http://www.sciencedirect.com/science/article/pii/S2211379720321239Vortex beamsOrbital angular momentumOrthogonal linear polarizationMetasurfaceMultidimensional demultiplexing |
| spellingShingle | Bo Yang Yanliang He Zhiqiang Xie Junmin Liu Huapeng Ye Jiangnan Xiao Ying Li Dianyuan Fan Shuqing Chen Dielectric metasurface based polarization and orbital angular momentum demultiplexer Results in Physics Vortex beams Orbital angular momentum Orthogonal linear polarization Metasurface Multidimensional demultiplexing |
| title | Dielectric metasurface based polarization and orbital angular momentum demultiplexer |
| title_full | Dielectric metasurface based polarization and orbital angular momentum demultiplexer |
| title_fullStr | Dielectric metasurface based polarization and orbital angular momentum demultiplexer |
| title_full_unstemmed | Dielectric metasurface based polarization and orbital angular momentum demultiplexer |
| title_short | Dielectric metasurface based polarization and orbital angular momentum demultiplexer |
| title_sort | dielectric metasurface based polarization and orbital angular momentum demultiplexer |
| topic | Vortex beams Orbital angular momentum Orthogonal linear polarization Metasurface Multidimensional demultiplexing |
| url | http://www.sciencedirect.com/science/article/pii/S2211379720321239 |
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