Design of a superparaboloidal solid immersion mirror for optomechatronic near-field recording

Young Sik Kim, Seung Jae Lee, No Cheol Park, Young Pil Park

Research output: Contribution to journalArticle

Abstract

We designed a superparaboloidal solid immersion mirror (SP-SIM) using a tilted parabolic mirror that applied total internal reflection to an optical flying head for near-field recording. As an SP-SIM does not need an objective lens or folding mirror, the height and weight of the optical flying head can be reduced. Using theoretical ray tracing, we found the optimal parameters for rotational symmetric beam intensity on a high-numerical-aperture (NA) focus. The effective NA of the SP-SIM was 1.32 for both the sagittal and meridional focuses. A 408-nm laser source and high refractive index material, NbFD13, was used for the simulation. The minimum spot sizes at full width 1/e2 intensity were 237 and 232 nm in the sagittal and meridional directions, respectively, at normal incidence. The size of the beam spot was kept nearly uniform within a maximum 5% deviation as the field angle changed within ±0.15°. The SP-SIM measured 0.83 mm × 0.95 mm × 0.27 mm (W × L × H) and weighed ca. 0.6 mg.

Original languageEnglish
Pages (from-to)1050-1055
Number of pages6
JournalIEEE Transactions on Industrial Electronics
Volume52
Issue number4
DOIs
Publication statusPublished - 2005 Aug 1

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Mirrors
Ray tracing
Light sources
Lenses
Refractive index
Lasers

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

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abstract = "We designed a superparaboloidal solid immersion mirror (SP-SIM) using a tilted parabolic mirror that applied total internal reflection to an optical flying head for near-field recording. As an SP-SIM does not need an objective lens or folding mirror, the height and weight of the optical flying head can be reduced. Using theoretical ray tracing, we found the optimal parameters for rotational symmetric beam intensity on a high-numerical-aperture (NA) focus. The effective NA of the SP-SIM was 1.32 for both the sagittal and meridional focuses. A 408-nm laser source and high refractive index material, NbFD13, was used for the simulation. The minimum spot sizes at full width 1/e2 intensity were 237 and 232 nm in the sagittal and meridional directions, respectively, at normal incidence. The size of the beam spot was kept nearly uniform within a maximum 5{\%} deviation as the field angle changed within ±0.15°. The SP-SIM measured 0.83 mm × 0.95 mm × 0.27 mm (W × L × H) and weighed ca. 0.6 mg.",
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Design of a superparaboloidal solid immersion mirror for optomechatronic near-field recording. / Kim, Young Sik; Lee, Seung Jae; Park, No Cheol; Park, Young Pil.

In: IEEE Transactions on Industrial Electronics, Vol. 52, No. 4, 01.08.2005, p. 1050-1055.

Research output: Contribution to journalArticle

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