Aberration compensation in near-field optics for multilayer data storage

Kwanhyung Kim, Kitak Won, Hyeongryeol Park, Narak Choi, Kwang Sup Soh, Sam Nyol Hong, Jeongkyo Seo, Seong Eul Choi, Jaisoon Kim

Research output: Contribution to journalArticle

Abstract

Spherical aberration (SA) is induced by a change in the focused layer in a multilayer system. In a multilayer far-field system, any kind of aberration-generating system can well compensate the SA induced by a change in the focused layer. However, the method used in the multilayer far-field system cannot be applied to a multilayer near-field recording (NFR) system with a solid immersion lens (SIL), because of many critical reasons including sensitivity. In a multilayer NFR SIL system, another method is required to compensate aberration. The use of a liquid crystal plate (LCP), afocal telescope-type lens compensator or a compact combined lens system is considered for the compensation of SA in the multilayer NFR SIL system in this study.

Original languageEnglish (US)
Article number03A045
JournalJapanese Journal of Applied Physics
Volume48
Issue number3 PART 2
DOIs
StatePublished - Mar 1 2009

Fingerprint Dive into the research topics of 'Aberration compensation in near-field optics for multilayer data storage'. Together they form a unique fingerprint.

Cite this