Preparation of high energy throughput SNOM probes
Paper i proceeding, 2011

In this technical note we present technological steps of fabrication of high energy throughput SNOM probes. The core-metal coating interface of probes is corrugated what enhances photon-to-plasmon coupling. A strong evanescent field allows for reduction of aperture diameter, which together with skin depth of metal used for coating decide upon resolution. Probes are made of Ge-doped silica glass fibre, which is hydrogenated to increase its photosensitivity. A Bragg grating is recorded in the cores with UV light diffracted into +1 st/1st diffraction orders on a sinusoidal phase mask. Modulation of the refractive index is connected with different etch rates. Etching with the Turner method is made in aqueous solution of HF acid. A corrugated tapered fibre is then coated with aluminium in a special rotating holder. We present results of this novel multi step technology.

resolution

Metals

Hydrofluoric acid

SNOM

Bragg grating

aperture metal-coated probes

Glass fibers

High energy physics

Doping (additives)

Phase masks

High energy

Bragg gratings

Evanescent fields

Technical notes

Aperture diameter

Ge-doped silica

Metal coatings

Protective coatings

corrugated tapered probes

Corrugated metal

Coating interfaces

Refractive index

Etch rates

Transparent optical networks

Silica

Germanium

Multi-step

Skin depth

HF acid

Probes

Fiber optic networks

Diffraction orders

Författare

P. Wróbel

Uniwersytet Warszawski

T. Stefaniuk

Uniwersytet Warszawski

Tomasz Antosiewicz

Chalmers, Teknisk fysik, Kondenserade materiens teori

A. Libura

High Pressure Research Center of the Polish Academy of Sciences

G. Nowak

High Pressure Research Center of the Polish Academy of Sciences

T. Wejrzanowski

Politechnika Warszawska

Mariusz Andrzejczuk

Politechnika Warszawska

K. Jedrzejewski

Politechnika Warszawska

T. Szoplik

Uniwersytet Warszawski

13th International Conference on Transparent Optical Networks, ICTON 2011, Stockholm, 26-30 June 2011

2162-7339 (eISSN)

Ämneskategorier

Annan teknik

DOI

10.1109/ICTON.2011.5971074

ISBN

978-145770880-0