10 June 2002 Two-dimensional detection of optoacoustic stress transients
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Proceedings Volume 4618, Biomedical Optoacoustics III; (2002) https://doi.org/10.1117/12.469853
Event: International Symposium on Biomedical Optics, 2002, San Jose, CA, United States
For enhanced optoacoustic imaging in biomedical applications more than one-dimensional detection is required. Tomographic images comparable to ultrasound B-scans can be generated with linear arrays. This work presents a detection scheme for such an array based on piezoelectric films. Each single detector consists of a ring shaped active area with a diameter of less than one millimeter, which leads to a high lateral resolution. Because of the small dimensions of the systems it is suitable for applications with limited accessibility like ophthalmic or endoscopic use. The sensitivity of a single detector is close to 0.5 mV/bar. First measurements on layered tissue phantoms made of gelatine and absorbing films show the potential of such an array for depth profiling as well as for two-dimensional imaging of simple structures.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Uwe Oberheide, Uwe Oberheide, Christoph Lee, Christoph Lee, Ronald Krebs, Ronald Krebs, Herbert Welling, Herbert Welling, Wolfgang Ertmer, Wolfgang Ertmer, Holger Lubatschowski, Holger Lubatschowski, } "Two-dimensional detection of optoacoustic stress transients", Proc. SPIE 4618, Biomedical Optoacoustics III, (10 June 2002); doi: 10.1117/12.469853; https://doi.org/10.1117/12.469853

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