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Proceedings Paper

Design of a laser diode photoacoustic sensor for tissue measurements
Author(s): Onni Ahola; Zuomin Zhao; Jussi Tenhunen; Seppo M. Nissila; Risto A. Myllyla
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Paper Abstract

A NIR laser diode photoacoustic sensor is designed and used in tissue measurement. Laser diode is easy to carry out portable sensor. Because of low absorption of tissue in NIR region and the limited output power of the diode, the gain and SNR of the receiver should be high for measuring very low level signals. Developing higher pulse energy of laser diode and more sensitive transducer are the key for the diode sensor in application of biomedical measurement.

Paper Details

Date Published: 15 January 1999
PDF: 3 pages
Proc. SPIE 3570, Biomedical Sensors, Fibers, and Optical Delivery Systems, (15 January 1999); doi: 10.1117/12.336930
Show Author Affiliations
Onni Ahola, Univ. of Oulu (Finland)
Zuomin Zhao, Univ. of Oulu (Finland)
Jussi Tenhunen, Technical Research Ctr. of Finland (Finland)
Seppo M. Nissila, Polar Electro (Finland)
Risto A. Myllyla, Univ. of Oulu (Finland)


Published in SPIE Proceedings Vol. 3570:
Biomedical Sensors, Fibers, and Optical Delivery Systems
Francesco Baldini; Nathan I. Croitoru; Martin Frenz; Ingemar Lundstroem; Mitsunobu Miyagi; Riccardo Pratesi; Otto S. Wolfbeis, Editor(s)

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