Feasibility study of the application of radially polarized illumination to solid immersion lens-based near-field optics

Yong Toong Yoon, Wan Chin Kim, No Cheol Park, Kyoung Su Park, Young Pil Park

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We analyzed the behavior of the electric field in a focal plane consisting of a solid immersion lens (SIL), an air gap, and a measurement sample for radially polarized illumination in SIL- based near-field optics with an annular aperture. The analysis was based on the Debye diffraction integral and multiple beam interference. For SIL-based near-field optics whose NA is higher than unity, radially polarized light generates a smaller beam spot on the bottom surface of a SIL than circularly polarized light; however, the beam spot on the measurement sample is broadened with a more dominant transverse electric field. By introducing an annular aperture technique, it is possible to decrease the effects of the transverse electric field, and therefore the size of the beam spot on the measurement sample can be small. This analysis could have various applications in near-field optical storage, near-field microscopy, lithography at ultrahigh resolution, and other applications that use SILs for high resolution.

Original languageEnglish
Pages (from-to)1961-1963
Number of pages3
JournalOptics Letters
Volume34
Issue number13
DOIs
Publication statusPublished - 2009 Jul 1

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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