Experimental research on near-field optical storage and virtual probe based on solid immersion lens

Jia Wang; Tao Hong

doi:10.1117/12.570705

3 January 2005 Experimental research on near-field optical storage and virtual probe based on solid immersion lens

Jia Wang, Tao Hong

Proceedings Volume 5643, Advances in Optical Data Storage Technology; (2005) https://doi.org/10.1117/12.570705
Event: Photonics Asia, 2004, Beijing, China

Abstract

Near-field optical recording based on solid immersion lens (SIL) system has attracted much attention in the high-density storage in recent years. The recording spot size can be decreased using the SIL effectively. The SIL near-field optical storage has advantages of high density, mass storage capacity and compatibility with many technologies well developed. We have set up a SIL near-field static recording system. The experimental result with recording spot size 200 nm is presented. The influence factors in SIL near-field recording system are also discussed in the paper. Near-field optical virtual probe (NFOVP) is a kind of virtual probe by the evanescence wave interference and aperture diffraction based on SIL. It has a great potential in near-field optical data storage. In this paper, the most important characteristics of the NFOVP has been revealed through numerical simulation. The FWHM of central peak, the size of near-field virtual probe is constant whatever the distance increases in a certain range so that the critical nano-separation control in the SIL near-field data storage system can be relaxed. A realization model of NFOVP based on SIL system for data storage has been proposed and the simulation result based on this model is presented.

Citation Download Citation

Jia Wang and Tao Hong "Experimental research on near-field optical storage and virtual probe based on solid immersion lens", Proc. SPIE 5643, Advances in Optical Data Storage Technology, (3 January 2005); https://doi.org/10.1117/12.570705

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KEYWORDS

Near field

Near field optics

Optical storage

Near field scanning optical microscopy

Optical recording

Solids

Prisms

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