SCANNING NEAR-FIELD OPTICAL PROBE WITH ULTRASMALL SPOT SIZE

被引：249

作者：

NOVOTNY, L ^{[1
]}

POHL, DW ^{[1
]}

HECHT, B ^{[1
]}

机构：

[1] IBM CORP,DIV RES,ZURICH RES LAB,CH-8803 RUSCHLIKON,SWITZERLAND

来源：

OPTICS LETTERS | 1995年 / 20卷 / 09期

关键词：

D O I：

10.1364/OL.20.000970

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel Light-emitting probe for scanning near-field optical microscopy is investigated theoretically. The three-dimensional vectorial Helmholtz equation is solved for the new probe geometry by using the multiple multipole method. The novel probe consists of a dielectric tip that is entirely metal coated. It provides a single near-field spot that can be smaller than 20 nm (FWHM). The dependence on tip radius, taper angle, and metal thickness in front of the tip is investigated for the power transmission through the probe as well as for the spot size.

引用

页码：970 / 972

页数：3

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[9]

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[10]

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