Novel Cover-Layer-Incident Dual-Layer Near-Field Recording Optics Using Hemispherical Solid-Immersion-Lens
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概要
- 論文の詳細を見る
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.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2006-02-15
著者
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Park No-cheol
Center For Information Storage Device Yonsei University
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Park Young-Pil
Center for Information Storage Device (CISD), Yonsei University
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Song Taesun
Center For Information Storage Device Yonsei University
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Kim Young-joo
Center For Information Storage Device (cisd) Yonsei University
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Choi Hyun
Center for Information Storage Device, Yonsei University, 134 Shinchon-dong, Seodaemun-ku, Seoul 120-749, Korea
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Park No-Cheol
Center for Information Storage Devices, Yonsei University, 134, Shinchon-Dong, Sudaemoon-Ku, Seoul, 120-749, Korea
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Kim Wan-Chin
Center for Information Storage Device (CISD), Yonsei University, 134 Shinchon-Dong, Seodaemoon-Ku, Seoul 120-749, Korea
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Kim Wan-Chin
Center for Information Storage Devices, Yonsei University, 134, Shinchon-Dong, Sudaemoon-Ku, Seoul, 120-749, Korea
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Kim Young-Joo
Center for Information Storage Devices, Yonsei University, 134, Shinchon-Dong, Sudaemoon-Ku, Seoul, 120-749, Korea
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Park Young-Pil
Center for Information Storage Devices, Yonsei University, 134, Shinchon-Dong, Sudaemoon-Ku, Seoul, 120-749, Korea
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