Nonlinear metasurface for simultaneous control of spin and orbital angular momentum in second harmonic generation
The spin and orbital angular momentum (SAM and OAM) of light is providing a new gateway toward high capacity and robust optical communications. While the generation of light with angular momentum is well studied in linear optics, its further integration into nonlinear optical devices will open new a...
| Main Authors: | , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2018
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| Online Access: | https://hdl.handle.net/10356/86666 http://hdl.handle.net/10220/45171 |
| _version_ | 1824456854770548736 |
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| author | Li, Guixin Wu, Lin Li, King F. Chen, Shumei Schlickriede, Christian Xu, Zhengji Huang, Siya Li, Wendi Liu, Yanjun Pun, Edwin Y. B. Zentgraf, Thomas Cheah, Kok W. Luo, Yu Zhang, Shuang |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Li, Guixin Wu, Lin Li, King F. Chen, Shumei Schlickriede, Christian Xu, Zhengji Huang, Siya Li, Wendi Liu, Yanjun Pun, Edwin Y. B. Zentgraf, Thomas Cheah, Kok W. Luo, Yu Zhang, Shuang |
| author_sort | Li, Guixin |
| collection | NTU |
| description | The spin and orbital angular momentum (SAM and OAM) of light is providing a new gateway toward high capacity and robust optical communications. While the generation of light with angular momentum is well studied in linear optics, its further integration into nonlinear optical devices will open new avenues for increasing the capacity of optical communications through additional information channels at new frequencies. However, it has been challenging to manipulate the both SAM and OAM of nonlinear signals in harmonic generation processes with conventional nonlinear materials. Here, we report the generation of spin-controlled OAM of light in harmonic generations by using ultrathin photonic metasurfaces. The spin manipulation of OAM mode of harmonic waves is experimentally verified by using second harmonic generation (SHG) from gold meta-atom with 3-fold rotational symmetry. By introducing nonlinear phase singularity into the metasurface devices, we successfully generate and measure the topological charges of spin-controlled OAM mode of SHG through an on-chip metasurface interferometer. The nonlinear photonic metasurface proposed in this work not only opens new avenues for manipulating the OAM of nonlinear optical signals but also benefits the understanding of the nonlinear spin–orbit interaction of light in nanoscale devices. |
| first_indexed | 2025-02-19T04:00:43Z |
| format | Journal Article |
| id | ntu-10356/86666 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T04:00:43Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/866662020-03-07T13:57:30Z Nonlinear metasurface for simultaneous control of spin and orbital angular momentum in second harmonic generation Li, Guixin Wu, Lin Li, King F. Chen, Shumei Schlickriede, Christian Xu, Zhengji Huang, Siya Li, Wendi Liu, Yanjun Pun, Edwin Y. B. Zentgraf, Thomas Cheah, Kok W. Luo, Yu Zhang, Shuang School of Electrical and Electronic Engineering Metasurface Optical Vortex The spin and orbital angular momentum (SAM and OAM) of light is providing a new gateway toward high capacity and robust optical communications. While the generation of light with angular momentum is well studied in linear optics, its further integration into nonlinear optical devices will open new avenues for increasing the capacity of optical communications through additional information channels at new frequencies. However, it has been challenging to manipulate the both SAM and OAM of nonlinear signals in harmonic generation processes with conventional nonlinear materials. Here, we report the generation of spin-controlled OAM of light in harmonic generations by using ultrathin photonic metasurfaces. The spin manipulation of OAM mode of harmonic waves is experimentally verified by using second harmonic generation (SHG) from gold meta-atom with 3-fold rotational symmetry. By introducing nonlinear phase singularity into the metasurface devices, we successfully generate and measure the topological charges of spin-controlled OAM mode of SHG through an on-chip metasurface interferometer. The nonlinear photonic metasurface proposed in this work not only opens new avenues for manipulating the OAM of nonlinear optical signals but also benefits the understanding of the nonlinear spin–orbit interaction of light in nanoscale devices. MOE (Min. of Education, S’pore) 2018-07-23T06:07:09Z 2019-12-06T16:26:56Z 2018-07-23T06:07:09Z 2019-12-06T16:26:56Z 2017 Journal Article Li, G., Wu, L., Li, K. F., Chen, S., Schlickriede, C., Xu, Z., et al. (2017). Nonlinear Metasurface for Simultaneous Control of Spin and Orbital Angular Momentum in Second Harmonic Generation. Nano Letters, 17(12), 7974-7979. 1530-6984 https://hdl.handle.net/10356/86666 http://hdl.handle.net/10220/45171 10.1021/acs.nanolett.7b04451 en Nano Letters © 2017 American Chemical Society. |
| spellingShingle | Metasurface Optical Vortex Li, Guixin Wu, Lin Li, King F. Chen, Shumei Schlickriede, Christian Xu, Zhengji Huang, Siya Li, Wendi Liu, Yanjun Pun, Edwin Y. B. Zentgraf, Thomas Cheah, Kok W. Luo, Yu Zhang, Shuang Nonlinear metasurface for simultaneous control of spin and orbital angular momentum in second harmonic generation |
| title | Nonlinear metasurface for simultaneous control of spin and orbital angular momentum in second harmonic generation |
| title_full | Nonlinear metasurface for simultaneous control of spin and orbital angular momentum in second harmonic generation |
| title_fullStr | Nonlinear metasurface for simultaneous control of spin and orbital angular momentum in second harmonic generation |
| title_full_unstemmed | Nonlinear metasurface for simultaneous control of spin and orbital angular momentum in second harmonic generation |
| title_short | Nonlinear metasurface for simultaneous control of spin and orbital angular momentum in second harmonic generation |
| title_sort | nonlinear metasurface for simultaneous control of spin and orbital angular momentum in second harmonic generation |
| topic | Metasurface Optical Vortex |
| url | https://hdl.handle.net/10356/86666 http://hdl.handle.net/10220/45171 |
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