Extending the focal distance without sacrificing the spatial resolution using virtual ultrasonic optical waveguides
Conference Paper, Proceedings of SPIE Photons Plus Ultrasound: Imaging and Sensing, Vol. 11642, March, 2021
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.
BibTeX
@conference{Scopelliti-2021-127186,author = {Matteo Giuseppe Scopelliti and Hengji Huang and Adithya Pediredla and Srinivasa G. Narasimhan and Ioannis Gkioulekas and Maysamreza Chamanzar},
title = {Extending the focal distance without sacrificing the spatial resolution using virtual ultrasonic optical waveguides},
booktitle = {Proceedings of SPIE Photons Plus Ultrasound: Imaging and Sensing},
year = {2021},
month = {March},
volume = {11642},
}
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