Method for visualizing a doped structure in undoped environment

Details Method for visualizing a doped structure in undoped environment Method for visualizing a doped structure in undoped environment

1984-09-10

1986-09-23

Fields, Carolyn E.

Radiant energy

Luminophor irradiation

2504611, 2504591, 356 731, G01N 2164

Patent

active

046137572

ABSTRACT:
A method for visualizing the core of a monomode fiber by means of a microscope lens is disclosed, said monomode fiber comprising a jacket of undoped silica glass and its core of silica glass being doped with Geo.sub.2 or TiO.sub.2. An invisible microscope image of the core is generated in an image plane B with the microscope lens with ultraviolet light from the wavelength range between 230 nm and 380 nm and the invisible image is converted into a visible image by means of a video system, whereby the clear contrast contained in the invisible microscope image which is based upon the employment of the ultraviolet light is preserved in the visible image.

REFERENCES:
patent: 3297873 (1967-01-01), Hovnanian et al.
patent: 3507987 (1970-04-01), Van Den Bosch
patent: 4161656 (1979-07-01), Marcuse et al.
patent: 4307296 (1981-12-01), Presby
patent: 4362943 (1982-12-01), Presby
Ultraviolet Absorption of Titanium and Germanium in Fused Silica, Schultz, P. C.; XIth International Congress of Glass, Prague 1977.

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