Opto-Mechatronics Issues in Solid Immersion Lens-Based Near Field Recording

Author

Park, No-Cheol ; Choi, Hyun ; Yoon, Yong-Joong ; Park, Young-Pil

Author_Institution

Center for Inf. Storage Devices, Yonsei Univ., Seoul

Volume

43

Issue

2

fYear

2007

Firstpage

785

Lastpage

789

Abstract

Current developments in the solid immersion lens (SIL) based near-field recording technology are briefly introduced and research results including design, analysis, and experiments in CISD are reported. Also, the concept and performance of the novel optics using SIL is described throughout this paper. To increase the center thickness tolerance of SIL and decrease chromatic aberration, we add the replicated lens on SIL and the diffractive optical element (DOE). As a result of this design, it is confirmed that the SIL thickness tolerance of the replicated SIL optics is from -15 up to 7 mum at 0.035lambda rms, and wavefront aberration is less than 0.035lambda rms through variation of wavelength from 401 up to 412 nm

Keywords

aberrations; lenses; optical storage; recording; chromatic aberration; diffractive optical element; opto-mechatronics issues; solid immersion lens-based near field recording; wavefront aberration; Holographic optical components; Holography; Lenses; Optical beams; Optical design; Optical devices; Optical recording; Optical refraction; Optical variables control; Solids; Gap-error signal; near-field recording (NFR); replicated lens; solid immersion lens (SIL);

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.888406

Filename

4069057