Development of a new pulsed source for photoacoustic imaging based on aperiodically poled lithium niobate

Diego Yankelevich; J E González; Roger S Cudney; Luis A Ríos; Laura Marcu

doi:10.1364/BOE.5.000468

Development of a new pulsed source for photoacoustic imaging based on aperiodically poled lithium niobate

Biomed Opt Express. 2014 Jan 13;5(2):468-73. doi: 10.1364/BOE.5.000468. eCollection 2014 Feb 1.

Authors

Diego Yankelevich¹, J E González², Roger S Cudney², Luis A Ríos², Laura Marcu³

Affiliations

¹ Department of Electrical and Computer Engineering, University of California, 3101 Kemper Hall, Davis, California, 95616, USA ; Department of Biomedical Engineering, University of California, 451 Health Sciences Drive, Davis, California, 95616, USA.
² Department of Optics, Centro de Investigación Científica y Educación Superior de Ensenada, Ensenada 22880, Mexico.
³ Department of Electrical and Computer Engineering, University of California, 3101 Kemper Hall, Davis, California, 95616, USA.

Abstract

We present the development of a source of deep-red radiation for photoacoustic imaging. This source, which is based on two cascaded wavelength conversion processes in aperiodically poled lithium niobate, emits 10 nanosecond pulses of over 500 µJ at 710 nm. Photoacoustic images were obtained from phantoms designed to mimic the optical and acoustic properties of oral tissue. Results indicate this device is a viable source of optical pulses for photoacoustic applications.

Keywords: (160.3730) Lithium niobate; (170.1065) Acousto-optics; (170.3880) Medical and biological imaging; (190.4223) Nonlinear wave mixing.

Grants and funding

R21 RR025818/RR/NCRR NIH HHS/United States