Abstract

The optoacoustic (photoacoustic) technique has been shown to resolve anatomical, functional, and molecular features at depths that go beyond the reach of epi-illumination optical microscopy, offering new opportunities for endoscopic imaging. In this Letter, we investigate the merits of optoacoustic endoscopy implemented by translating a sound detector in linear or curved geometries. The linear and curved detection geometries are achieved by employing an intravascular ultrasound transducer within a plastic guide shaped to a line or a curve. This concept could be used together with optical endoscopes to yield hybrid optical and optoacoustic imaging.

© 2015 Optical Society of America

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