광섬유 커프러의 특성에 기반한 비접촉 광음향 이미징 시스템

Abstract

A noncontact photoacoustic imaging method based on optical quadrature detection is proposed. By utilizing the intrinsic phase difference among the ports of a multiport optical interferometer, the quadrature signal of a conventional interferometric signal could be obtained. It allows the noncontact detection with a consistent sensitivity.