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Mehmood MQ, Mei S, Hussain S, Huang K, Siew SY, Zhang L, Zhang T, Ling X, Liu H, Teng J, Danner A, Zhang S, Qiu CW. Visible-Frequency Metasurface for Structuring and Spatially Multiplexing Optical Vortices. Adv Mater 2016; 28:2533-9. [PMID: 26833667 DOI: 10.1002/adma.201504532] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 12/02/2015] [Indexed: 05/09/2023]
Abstract
A multifocus optical vortex metalens, with enhanced signal-to-noise ratio, is presented, which focuses three longitudinal vortices with distinct topological charges at different focal planes. The design largely extends the flexibility of tuning the number of vortices and their focal positions for circularly polarized light in a compact device, which provides the convenience for the nanomanipulation of optical vortices.
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Affiliation(s)
- M Q Mehmood
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583
| | - Shengtao Mei
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583
- Graduate School for Integrative Sciences and Engineering, National University of Singapore, Centre for Life Sciences (CeLS), #05-01, 28 Medical Drive, Singapore, 117456, Singapore
| | - Sajid Hussain
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583
| | - Kun Huang
- Institute of Materials Research and Engineering Agency for Science Technology and Research (A*STAR), Innovis, #08-03, 2 Fusionopolis Way, Singapore, 138634
| | - S Y Siew
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583
| | - Lei Zhang
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583
| | - Tianhang Zhang
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583
| | - Xiaohui Ling
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583
- College of Physics and Electronic Engineering, Hengyang Normal University, Hengyang, 421002, China
| | - Hong Liu
- Institute of Materials Research and Engineering Agency for Science Technology and Research (A*STAR), Innovis, #08-03, 2 Fusionopolis Way, Singapore, 138634
| | - Jinghua Teng
- Institute of Materials Research and Engineering Agency for Science Technology and Research (A*STAR), Innovis, #08-03, 2 Fusionopolis Way, Singapore, 138634
| | - Aaron Danner
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583
| | - Shuang Zhang
- School of Physics & Astronomy, University of Birmingham, Birmingham, B15 2TT, UK
| | - Cheng-Wei Qiu
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583
- Graduate School for Integrative Sciences and Engineering, National University of Singapore, Centre for Life Sciences (CeLS), #05-01, 28 Medical Drive, Singapore, 117456, Singapore
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Shao Y, Qin W, Liu H, Qu J, Peng X, Niu H, Gao BZ. Addressable multiregional and multifocal multiphoton microscopy based on a spatial light modulator. J Biomed Opt 2012; 17:030505. [PMID: 22502556 PMCID: PMC3602816 DOI: 10.1117/1.jbo.17.3.030505] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Through a combination of a deflective phase-only diffractive spatial light modulator (SLM) and galvo scanners, an addressable multiregional and multifocal multiphoton microscope (AM-MMM) is developed. The SLM shapes an incoming mode-locked, near-infrared Ti:sapphire laser beam into multiple beamlet arrays with addressable shapes and sizes that match the regions of interest on the sample. Compared with conventional multifocal multiphoton microscope (MMM), AM-MMM achieves the effective use of the laser power with an increase of imaging rate and a decrease of photodamage without sacrifice of resolution.
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Affiliation(s)
- Yonghong Shao
- Shenzhen University, College of Optoelectronics Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen 518060, China
| | - Wan Qin
- Clemson University, Department of Bioengineering and COMSET, Clemson, South Carolina 29634
| | - Honghai Liu
- Clemson University, Department of Bioengineering and COMSET, Clemson, South Carolina 29634
| | - Junle Qu
- Shenzhen University, College of Optoelectronics Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen 518060, China
| | - Xiang Peng
- Shenzhen University, College of Optoelectronics Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen 518060, China
| | - Hanben Niu
- Shenzhen University, College of Optoelectronics Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen 518060, China
| | - Bruce Z. Gao
- Clemson University, Department of Bioengineering and COMSET, Clemson, South Carolina 29634
- Address all correspondence to: Bruce Z. Gao or Junle Qu, Clemson University, Department of Bioengineering and COMSET, Clemson, South Carolina 29634. Tel: (864) 656-3311; E-mail: or
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