Photoacoustic microscopy system for biological tissue imaging

Abstract A photoacoustic microscopy system was created and examined for biological tissue. Characterization of microphone, laser, motor stepper done to get the most appropriate setting system. The object table is set in a static state scanning process while radiation sources detector move X-Y direction. hardware components this consist signal generation components, mechanical detection components. are integrated controlled by computer through Raspberry-pi microcomputer software. characterization results image obtained optimum detecting tissue, namely frequency diode laser range 19 kHz with duty cycle 30%, minimum shift 0.2 mm. This can same tissue as original sample good contrast. smallest that be scanned 0.75 penetration depth 0.5