Study of New Technique for Three Dimensional Images in Photoacoustic Microscope

Abstract

We developed a technique for simultaneous measurement of multiple frequencies that allows rapid image build-up. The elapsed time required for measurement of the ω-1 dependence of the photoacoustic signal in the frequency range of 10 to 100 Hz in a graphite was 1/5 that required for a conventional technique employing a lock-in amplifier.

Study of Photoacoustic Three-Dimensional Imaging by the Simultaneous Measurement of Multiple Frequencies Method

“…1,2) However, many systems proposed to date have achieved only one dimensional imaging in the depth direction. [3][4][5][6][7][8] So, the problem is that an enormous amount of time is required for 3-D image acquisition.…”