Abstract:
:A binary metallic superoscillatory lens assisted with annular subwavelength slits is proposed, which generates a longitudinally-polarized super-resolution focal point. The annular slits are designed to selectively transmit radially-polarized light. Simulations using the finite element method show a 0.24 λ focal spot with 21.8 dB of polarization purity and only 0.342 dB reduction in efficiency compared to a standard superoscillatory lens.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Kim H,Rogers ETFdoi
10.1038/s41598-019-56810-3subject
Has Abstractpub_date
2020-01-28 00:00:00pages
1328issue
1issn
2045-2322pii
10.1038/s41598-019-56810-3journal_volume
10pub_type
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