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Proceedings Paper

New focusing lens system and tolerance analysis for near-field recording system
Author(s): Jun Hee Lee; Hyoung Kil Yoon; Dong Kyun Kang; Dae gab Gweon; Sang Tae Lee
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Paper Abstract

Tolerance analysis for focusing unit of near field recording system is presented. The assembling and manufacturing tolerances of SIL and OL are simulated using CODE V. In addition, we proposed to move collimated lens (CL) back and forth to compensate and control these tolerances, especially in optical axis direction. And we proposed, a new doublet solid immersion lens (DSIL) for near field optical system, which can minimize the tilting, decenter, defocus misalignment problems between objective lens and solid immersion lens in existing near field optical system. The objective lens, which confines the beam, and secondary lens which increases the numerical aperture, join together to make one module cemented lens system.

Paper Details

Date Published: 17 September 2002
PDF: 8 pages
Proc. SPIE 4930, Advanced Optical Storage Technology, (17 September 2002); doi: 10.1117/12.483365
Show Author Affiliations
Jun Hee Lee, Korea Advanced Institute of Science and Technology (South Korea)
Hyoung Kil Yoon, Korea Advanced Institute of Science and Technology (South Korea)
Dong Kyun Kang, Korea Advanced Institute of Science and Technology (South Korea)
Dae gab Gweon, Korea Advanced Institute of Science and Technology (South Korea)
Sang Tae Lee, Cheongju Univ. (South Korea)


Published in SPIE Proceedings Vol. 4930:
Advanced Optical Storage Technology
Duanyi Xu; Seiya Ogawa, Editor(s)

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