Integrated optical sensors for optoacoustic imaging of tissue

P. Dmochowski; Barrie R. Hayes-Gill; C. Li; Stephen P. Morgan; Matt Clark; John A. Crowe; Michael G. Somekh

doi:10.1117/12.572041

29 July 2004 Integrated optical sensors for optoacoustic imaging of tissue

P. Dmochowski, Barrie R. Hayes-Gill, C. Li, Stephen P. Morgan, Matt Clark, John A. Crowe, Michael G. Somekh

Author Affiliations +

Proceedings Volume 5486, ALT'03 International Conference on Advanced Laser Technologies: Biomedical Optics; (2004) https://doi.org/10.1117/12.572041
Event: ALT'03 International Conference on Advanced Laser Technologies: Biomedical Optics, 2003, Silsoe, United Kingdom

Abstract

The design of a single integrated lock-in pixel with a logarithmic response for a modulated light camera is described. The sensor has been designed to detect low light levels and can detect modulated light with frequency well above 2 MHz. An n-well photodiode, amplifier, mixer and 150 Hz low-pass filter have been implemented to allow continuous processing of the incident light. The performance of the sensor is demonstrated using an optoacoustic imaging system and tissue phantoms. A 1 MHz ultrasound transducer is used to modulate light scattered through a tissue phantom. An absorbing sphere is scanned through the medium and the improvement in imaging performance provided by ultrasound modulation is demonstrated.

Citation Download Citation

P. Dmochowski, Barrie R. Hayes-Gill, C. Li, Stephen P. Morgan, Matt Clark, John A. Crowe, and Michael G. Somekh "Integrated optical sensors for optoacoustic imaging of tissue", Proc. SPIE 5486, ALT'03 International Conference on Advanced Laser Technologies: Biomedical Optics, (29 July 2004); https://doi.org/10.1117/12.572041

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