Fabrication of corrugated probes for scanning near-field optical microscopy
Paper i proceeding, 2011

We present a method of fabricating aperture tapered-fiber metal-coated SNOM probes with a corrugated core surface which assures efficient photon-to-plasmon conversion and thus high energy throughput. High energy throughput allows for a small apex aperture and high resolution. The procedure consists of recording of Bragg grating in the to-be-tapered part of a Ge-doped silica fiber and chemical etching with the Turner method. Bragg gratings are recorded with UV light through nearly sinusoidal phase masks of chosen lattice constants. The refractive index contrast in the Bragg grating differentiates the etch rate of the Ge-doped hydrogenated fiber core in exposed and unexposed parts by about 100 nm/min at room temperature.

Corregated SNOM probes

Scanning near-field optical microscopy

SNOM probes

Etching

Turner method

Aperture metal-coated probes

Bragg grating

Författare

P. Wróbel

Uniwersytet Warszawski

T. Stefaniuk

Uniwersytet Warszawski

Tomasz Antosiewicz

Chalmers, Teknisk fysik, Kondenserade materiens teori

A. Libura

Polish Academy of Sciences

G. Nowak

Polish Academy of Sciences

T. Wejrzanowski

Politechnika Warszawska

R. Slesinski

Politechnika Warszawska

K. Jedrzejewski

Politechnika Warszawska

T. Szoplik

Uniwersytet Warszawski

Proceedings of SPIE - The International Society for Optical Engineering

0277786X (ISSN)

Vol. 8070 80700I

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1117/12.886844

ISBN

978-081948660-8

Mer information

Senast uppdaterat

2018-10-30