TITLE:
Closed/Open-Cell Photoacoustic Imaging for Spectroscopic Measurements
AUTHORS:
Tsutomu Hoshimiya
KEYWORDS:
Photoacoustic, Imaging, Spectroscopic, Calibration Curve, Color Restoration
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.4 No.8,
August
15,
2016
ABSTRACT: Photoacoustic imaging using a closed photoacoustic cell and an open photoacoustic cell with gas- microphone detection scheme was described. R/G/B LED light sources were used for the closed photoacoustic (PA) cell configuration. The colored specimen enclosed in a PA cell was imaged with R/G/B color light sources, and an image restored from the inverted PA images was compared with the original image. For open cell configuration, an open PA cell using a spheroidal acoustic resonator was applied to measure the amount of large-sized colored specimens. A calibration curve for a food red dye was obtained that apparently showed the ability of the present scheme to measure as a spectroscopic measurement tool.