High - Density Near - Field Readout Using a Diamond Solid Immersion Lens

Masataka Shinoda; Kimihiro Saito; Takao Kondo; Ariyoshi Nakaoki; Motohiro Furuki; Minoru Takeda; Masanobu Yamamoto; T.J. Schaich; B.M. van Oerle; H.P. Godfried; P.A.C. Kriele; E.P. Houwman; W.H.M. Nelissen; G.J. Pels; P.G.M. Spaaij

doi:10.1364/ISOM_ODS.2005.PD2

International Symposium on Optical Memory and Optical Data Storage
OSA Technical Digest Series (Optica Publishing Group, 2005),
paper PD2
•https://doi.org/10.1364/ISOM_ODS.2005.PD2

High - Density Near - Field Readout Using a Diamond Solid Immersion Lens

Masataka Shinoda, Kimihiro Saito, Takao Kondo, Ariyoshi Nakaoki, Motohiro Furuki, Minoru Takeda, Masanobu Yamamoto, T.J. Schaich, B.M. van Oerle, H.P. Godfried, P.A.C. Kriele, E.P. Houwman, W.H.M. Nelissen, G.J. Pels, and P.G.M. Spaaij

International Symposium on Optical Memory and Optical Data Storage 2005

Honolulu, Hawaii United States
10–14 July 2005
ISBN: 1-55752-794-6

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M. Shinoda, K. Saito, T. Kondo, A. Nakaoki, M. Furuki, M. Takeda, M. Yamamoto, T. J. Schaich, B. M. van Oerle, H. P. Godfried, P. A. C. Kriele, E. P. Houwman, W. H. M. Nelissen, G. J. Pels, and P. G. M. Spaaij, "High - Density Near - Field Readout Using a Diamond Solid Immersion Lens," in International Symposium on Optical Memory and Optical Data Storage, OSA Technical Digest Series (Optica Publishing Group, 2005), paper PD2.

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Abstract

We investigated high - density near - field readout using a diamond solid immersion lens. A synthetic single crystal CVD diamond provides high refractive index and high transparency for wide wavelength. Since the refractive index at the wavelength of 405 nm is 2.458, we could design a solid immersion lens with an effective numerical aperture of 2.34. We observed an eye pattern of 150 GB capacity (104.3 Gbit / in²) disk with 130 nm track pitch and 47.6 nm bit length.

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