Dynamic plasmonic beam shaping by vector beams with arbitrary locally linear polarization states

Journal Article · Mon Jul 07 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4887824· OSTI ID:22303927

Man, Zhongsheng; Zhang, Yuquan; Zhang, Chonglei ^[1]; Du, Luping ^[2]; Min, Changjun; Zhu, Siwei ^[3]; Paul Urbach, H. ^[4]

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1. Institute of Modern Optics, Nankai University, Tianjin 300071 (China)
2. School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore)
3. Institute of Oncology, Tianjin Union Medicine Centre, Tianjin 300121 (China)
4. Optics Research Group, Delft University of Technology, Lorentzweg 1, 2628CJ Delft (Netherlands)

Vector beams, which have space-variant state of polarization (SOP) comparing with scalar beams with spatially homogeneous SOP, are used to manipulate surface plasmon polarizations (SPPs). We find that the excitation, orientation, and distribution of the focused SPPs excited in a high numerical aperture microscopic configuration highly depend on the space-variant polarization of the incident vector beam. When it comes to vector beam with axial symmetry, multi-foci of SPPs with the same size and uniform intensity can be obtained, and the number of foci is depending on the polarization order n. Those properties can be of great value in biological sensor and plasmonic tweezers applications.

• OSTI ID: 22303927
• Journal Information: Applied Physics Letters, Vol. 105, Issue 1; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
APERTURES
AXIAL SYMMETRY
BEAM SHAPING
BEAMS
CONFIGURATION
DISTRIBUTION
EXCITATION
PLASMONS
POLARIZATION
SENSORS
SIMULATION
SURFACES