新しいレーザー生体計測法としての光ヘテロダイン方式CT法の研究開発

抄録

This paper repots and discusses for the first time the possibility for realizing an optical computer tomograpy for biological subjects using the optical heterodyne technique that has excellent sensitivity and directivity to distinguish one specific direction in highly scattering absorptive media. Employing an optical heterodyne system with a single frequency He-Ne laser, Lambert-Beer's law was demonstrated for directly transmitted beam even in highly scattering media such as milk-water solution and its mixed solution with absorptive dye. We discuss the detection system based on the antenna property of the optical heterodyne receiver for investigating the characteristics of laser beam propagation and its direction as well as image detection in highly scattering media.