NEAR-FIELD OPTICAL-DATA STORAGE USING A SOLID IMMERSION LENS

被引：362

作者：

TERRIS, BD ^{[1
]}

MAMIN, HJ ^{[1
]}

RUGAR, D ^{[1
]}

STUDENMUND, WR ^{[1
]}

KINO, GS ^{[1
]}

机构：

[1] STANFORD UNIV,EDWARD L GINZTON LAB,STANFORD,CA 94305

来源：

APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 04期

关键词：

D O I：

10.1063/1.112341

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A near-field optical technique, using a new type of solid immersion lens (SIL), has been developed and applied to the writing and reading of domains in magneto-optic material. The SIL is a truncated glass sphere which serves to increase the numerical aperture of the optical system by n2, where n is the index of refraction of the lens material. Using a SIL made from n = 1.83 glass and illuminating with 780 nm light, we have achieved a 317 nm spot size. We have resolved a 500 nm period grating, and written and read 350 nm diameter magnetic domains. The technique should be capable of a 125 nm focused spot size using blue light.

引用

页码：388 / 390

页数：3

共 13 条

[1] COLLECTION MODE NEAR-FIELD SCANNING OPTICAL MICROSCOPY [J].