1 Institute of Sensors, Signals and Electrotechnics, Faculty of Engineering, SDU2 Faculty of Engineering, SDU3 Institute of Technology and Innovation, Faculty of Engineering, SDU4 Institute of Technology and Innovation, Faculty of Engineering, SDU
The preliminary result of using a high-power light emitting diode, LED, for photoacoustic imaging is presented. The pulsed light source is created by a 1Watt red Luxeon LED. The LED delivers light pulses with 25W peak power when supplied by 40A peak, 60ns wide current pulses. The phantom used for the experiment consists of a 3mm high x 5mm wide slice of green colored gelatine overlaid by a 3cm layer of colorless gelatine. The light pulses from the LED is focused on the green gelatine. The photoacoustic response from the green gelatine is detected by a single transducer on the opposite (top) surface of the colorless gelatine layer.
Foto akustik; Photoacoustic
Main Research Area:
SPIE Medical Imaging 2011, Ultrasonic Imaging, Tomography, and Therapy