콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Design of compatible optics for solid-immersion-lens-based near-field recording system and Blu-ray Disc using relay lens
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2009
- 저자명 H. Choi, J. Kim, Y. Yoon, W. Kim, N. Park, Y. Park, and K. Park
- 학술지명 Jpn. J. Appl. Phys
- 발행처명 IOP Publishing
- 발행국가 해외
- 논문언어 외국어
논문 초록 (Abstract)
We designed compatible optics for a solid-immersion-lens (SIL)-based near-field recording (NFR) system and a Blu-ray disc (BD). The working distance, numerical aperture (NA), and cover layer thickness of the SIL-based NFR system differ from those of BD. Therefore, for the compatibility of a cover layer incident type NFR system of whose NA is 1.46 and BD, we use a relay lens that is composed of two lowNA lenses. The optical tolerances such as decenter, tilt, and SIL thickness tolerances are considered to ensure manufacturability. The decenter and tilt tolerances of each optical component are greater than 1.0 mm and 0.1, respectively. The tolerance of the SIL thickness range is 14 mm at the criterion of the wavefront aberration of 0:035 rms. We design the optical layout and simulate each focus error signal of BD and the SIL-based NFR system. From the practical design results, we confirm that the SIL-based NFR system can be compatible to BD with a simple relay lens. # 2009 The Japan Society of Applied Physics
