Novel cover-layer-incident dual-layer near-field recording optics using hemispherical solid-immersion-lens

Wan Chin Kim; Hyun Choi; Tae Sun Song; No Cheol Park; Young Pil Park; Young Joo Kim

doi:10.1143/JJAP.45.1363

Novel cover-layer-incident dual-layer near-field recording optics using hemispherical solid-immersion-lens

Wan Chin Kim, Hyun Choi, Tae Sun Song, No Cheol Park, Young Pil Park, Young Joo Kim

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

A novel for the design optics for using cover layer-incident dual-layer near-field recording (NFR) is proposed. Using two aplanatic positions of a hemispherical solid immersion lens (HMS), dual-layer NFR optics is designed and optimized. To achieve a high system numerical aperture (NA) of 1.45 for the dual recording layers, a prefocusing lens having NA of 0.7 and a solid immersion lens (SIL) with a refractive index of 2.086 are used. Critical spherical aberrations caused by variations in thickness and chromatic aberrations are effectively suppressed by zoom optics, an additional aspheric lens surface, and a diffractive optical element (DOE). The gap-induced aberration of the designed NFR optics is also investigated.

Original language	English
Pages (from-to)	1363-1365
Number of pages	3
Journal	Japanese Journal of Applied Physics
Volume	45
Issue number	2 B
DOIs	https://doi.org/10.1143/JJAP.45.1363
Publication status	Published - 2006 Feb 24

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

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10.1143/JJAP.45.1363

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title = "Novel cover-layer-incident dual-layer near-field recording optics using hemispherical solid-immersion-lens",

abstract = "A novel for the design optics for using cover layer-incident dual-layer near-field recording (NFR) is proposed. Using two aplanatic positions of a hemispherical solid immersion lens (HMS), dual-layer NFR optics is designed and optimized. To achieve a high system numerical aperture (NA) of 1.45 for the dual recording layers, a prefocusing lens having NA of 0.7 and a solid immersion lens (SIL) with a refractive index of 2.086 are used. Critical spherical aberrations caused by variations in thickness and chromatic aberrations are effectively suppressed by zoom optics, an additional aspheric lens surface, and a diffractive optical element (DOE). The gap-induced aberration of the designed NFR optics is also investigated.",

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AU - Kim, Wan Chin

AU - Choi, Hyun

AU - Song, Tae Sun

AU - Park, No Cheol

AU - Park, Young Pil

AU - Kim, Young Joo

PY - 2006/2/24

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N2 - A novel for the design optics for using cover layer-incident dual-layer near-field recording (NFR) is proposed. Using two aplanatic positions of a hemispherical solid immersion lens (HMS), dual-layer NFR optics is designed and optimized. To achieve a high system numerical aperture (NA) of 1.45 for the dual recording layers, a prefocusing lens having NA of 0.7 and a solid immersion lens (SIL) with a refractive index of 2.086 are used. Critical spherical aberrations caused by variations in thickness and chromatic aberrations are effectively suppressed by zoom optics, an additional aspheric lens surface, and a diffractive optical element (DOE). The gap-induced aberration of the designed NFR optics is also investigated.

AB - A novel for the design optics for using cover layer-incident dual-layer near-field recording (NFR) is proposed. Using two aplanatic positions of a hemispherical solid immersion lens (HMS), dual-layer NFR optics is designed and optimized. To achieve a high system numerical aperture (NA) of 1.45 for the dual recording layers, a prefocusing lens having NA of 0.7 and a solid immersion lens (SIL) with a refractive index of 2.086 are used. Critical spherical aberrations caused by variations in thickness and chromatic aberrations are effectively suppressed by zoom optics, an additional aspheric lens surface, and a diffractive optical element (DOE). The gap-induced aberration of the designed NFR optics is also investigated.

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Novel cover-layer-incident dual-layer near-field recording optics using hemispherical solid-immersion-lens

Abstract

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