Extending the focal distance without sacrificing the spatial resolution using virtual ultrasonic optical waveguides

Matteo Giuseppe Scopelliti; Hengji Huang; Adithya Pediredla; Srinivasa G. Narasimhan; Ioannis Gkioulekas; Maysamreza Chamanzar

doi:10.1117/12.2578809

5 March 2021 Extending the focal distance without sacrificing the spatial resolution using virtual ultrasonic optical waveguides

Matteo Giuseppe Scopelliti, Hengji Huang, Adithya Pediredla, Srinivasa G. Narasimhan, Ioannis Gkioulekas, Maysamreza Chamanzar

Author Affiliations +

Proceedings Volume 11642, Photons Plus Ultrasound: Imaging and Sensing 2021; 116424S (2021) https://doi.org/10.1117/12.2578809
Event: SPIE BiOS, 2021, Online Only

Conference Poster

Abstract

We present a novel technique to extend the focal length of an external lens without increasing the spot size using virtual optical waveguides ultrasonically sculpted in transparent and turbid media. When used in tandem with an external lens, these non-invasive virtual waveguides can further relay the focused beam of light into the medium without losing the spatial resolution. We will also show how the optical properties of this physical-virtual cascade system can be reconfigured by changing the pattern of ultrasound. This method can find intriguing applications for manipulating the trajectory of light in transparent and turbid media, including biological tissue.

Conference Presentation

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Matteo Giuseppe Scopelliti, Hengji Huang, Adithya Pediredla, Srinivasa G. Narasimhan, Ioannis Gkioulekas, and Maysamreza Chamanzar "Extending the focal distance without sacrificing the spatial resolution using virtual ultrasonic optical waveguides", Proc. SPIE 11642, Photons Plus Ultrasound: Imaging and Sensing 2021, 116424S (5 March 2021); https://doi.org/10.1117/12.2578809

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