Two-dimensional detection of optoacoustic stress transients

Uwe Oberheide; Christoph Lee; Ronald Krebs; Herbert Welling; Wolfgang Ertmer; Holger Lubatschowski

doi:10.1117/12.469853

10 June 2002 Two-dimensional detection of optoacoustic stress transients

Uwe Oberheide, Christoph Lee, Ronald Krebs, Herbert Welling, Wolfgang Ertmer, Holger Lubatschowski

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

Abstract

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.

Citation Download Citation

Uwe Oberheide, Christoph Lee, Ronald Krebs, Herbert Welling, Wolfgang Ertmer, and Holger Lubatschowski "Two-dimensional detection of optoacoustic stress transients", Proc. SPIE 4618, Biomedical Optoacoustics III, (10 June 2002); https://doi.org/10.1117/12.469853

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available