Laser Photoacoustic Microscopy
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概要
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We have performed photoacoustic micro-imaging using a microphone detection technique. A microcomputer controlled photoacoustic imaging system is developed. A sample on a sensitive photoacoustic cell is scanned mechanically and photoacoustic signals generated by a focused laser beam are detected with a condenser microphone and a lock-in amplifier. The magnitude and the phase images of photoacoustic signal are displayed on a TV monitor. To obtain a clearer sub-surface image, digital image enhancement techniques are employed. Spatial resolution of the present photoacoustic microscope is 15μm. Some subsurface images and a power transistor image are presented.
- 社団法人 レーザー学会の論文
社団法人 レーザー学会 | 論文
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