Kanagawa Academy of Science and Technology

Other

Toshiharu Saiki

Motoichi Ohtsu

Shuji Mononobe

Takuya Matsumoto

Tsutomu Inoue

Yoshihito Narita

Susumu Teruyama

A probe opening forming apparatus comprising: light detecting means for detecting a quantity of a light transmitted from a tip portion of the probe through a light of the source which is on contact with the tip portion of the probe; storage means for previously storing information about relation of the quantity of the light transmitted from the tip portion of the probe and the size of the opening; calculating means for obtaining the value of the light quantity for obtaining an opening having a desirable size based on the information stored in the storage means and pressing control means for controlling the press of the tip portion of the probe against the light detecting means through the pressing means such that a light quantity detected by the light detecting means is equal to the light quantity calculated from the calculating means

Probe opening forming apparatus and near-field optical microscope using the same

An optical fiber made up of a core for propagating the light and a cladding covering the core for interrupting light propagated within the core. The optical fiber includes a tip formed by sharpening an end of the core in a tapering fashion, a light-shielding coating layer formed on the surface of the tip and an aperture formed by exposing the foremost part of the tip from the light-shielding coating layer to outside. The light-shielding coating layer operates as a light shielding portion for interrupting the light radiated on other than the aperture and light enters or exits only at the aperture and light is propagated in the core as it is repeatedly reflected at a core-cladding boundary and is collected at the tip so as to be radiated via the aperture. The light entering the tip via the aperture is conducted into the core via the tip.

Method for producing optical fiber having core with sharpened tip

Optical fiber having core with sharpened tip protruding from

Growing community of inventors

Tokyo, Japan

Toshiharu Saiki