100-FEMTOSECOND 100-NANOMETER NEAR-FIELD PROBE

被引：20

作者：

SMITH, S

ORR, BG

KOPELMAN, R

NORRIS, T

机构：

[1] UNIV MICHIGAN,DEPT CHEM,ANN ARBOR,MI 48109

[2] UNIV MICHIGAN,DEPT ELECT ENGN & COMP SCI,ANN ARBOR,MI 48109

来源：

ULTRAMICROSCOPY | 1995年 / 57卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0304-3991(94)00131-6

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

Cross-correlation by upconversion has been used to measure pulse widths below 100 fs emitted from an aluminum-coated fiber near-field tip of the variety reported by Betzig et al. [Science 251 (1991) 1468]. The pulses are 0.8 mu m center-wavelength with 76 MHz repetition rate generated by a Ti:sapphire mode-locked laser. The size of the probe is estimated at 100 nm by SEM micrographs and previous experience with similar probes used in our continuous wave NSOM systems. We measure average tip output powers of similar to 1 nW for average input powers of similar to 500 mu W.

引用

页码：173 / 175

页数：3