Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published March 26, 2012 | Published
Journal Article Open

Slow light for deep tissue imaging with ultrasound modulation


Slow light has been extensively studied for applications ranging from optical delay lines to single photon quantum storage. Here, we show that the time delay of slow-light significantly improves the performance of the narrowband spectral filters needed to optically detect ultrasound from deep inside highly scatteringtissue. We demonstrate this capability with a 9 cm thick tissue phantom, having 10 cm^(−1) reduced scattering coefficient, and achieve an unprecedented background-free signal. Based on the data, we project real time imaging at video rates in even thicker phantoms and possibly deep enough into real tissue for clinical applications like early cancer detection.

Additional Information

© 2012 American Institute of Physics. Received 6 February 2012; accepted 5 March 2012; published online 26 March 2012. S.K. was sponsored in part by the Swedish Research Council, the Knut & Alice Wallenberg Foundation, the Crafoord Foundation and the EC FP7 Contract No. 247743 (QuRep). L.V.W. was sponsored in part by National Institutes of Health grants R01 EB000712 and U54 CA136398.

Attached Files

Published - 1.3696307.pdf


Files (2.5 MB)
Name Size Download all
2.5 MB Preview Download

Additional details

August 19, 2023
October 20, 2023