Patent Number: 6,806,714

Title: Detector of near-infrared light

Abstract: A detector of near-infrared light includes a light receiving device having a perovskite-type composite oxide expressed by a general formula of La.sub.1-x Pr.sub.x CrO.sub.3 (where 0<x<1) and magnetization measuring means for measuring an increase in magnetization in the composite oxide of the light receiving device when the light receiving device is irradiated with near-infrared light at room temperature.

Inventors: Izumi; Mitsuru (Tokyo, JP), Yanagisawa; Osami (Onomichi, JP), Nakayama; Takahiro (Utsunomiya, JP), Arai; Masato (Yokohama, JP)

Assignee: President of Tokyo University of Mercantile Marine

International Classification: G01J 1/02 (20060101); G01V 3/00 (20060101); H01L 27/14 (20060101); G01N 21/35 (20060101); G01N 21/31 (20060101); G01V 003/00 ()

Expiration Date: 10/19/2012