Near field scanning optical microscopy

Details Near field scanning optical microscopy Near field scanning optical microscopy

1989-08-16

1990-04-17

Bovernick, Rodney B.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250216, 35016211, 350507, G02B 518, G02B 2100, H01J 314, H01J 516

Patent

active

049174622

ABSTRACT:
An aperture probe in the form of a tapered metal-coated glass pipette having a thin tip provides near-field access to a sample for near-field microscopy. The pipette is formed from a glass tube drawn down to a fine tip, and then coated, as by evaporation, by a metallic layer. The central opening of the tube is drawn down to a submicron diameter, and the metal coating is formed with an aperture at that opening. Aperture diameters down to 500 Angstroms diameter are provided. Also disclosed is a microscope utilizing the pipette aperture for scanning near-field imaging of samples.

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