By Rashid Bashir¹; Rohit Bhargava²; Stephen Boppart²; Ann M. Nardulli³; Taher A. Saif⁴; Mike Gregory; Erich Lidstone

1. MNTL, Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 2. Bioimaging Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 3. Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Urbana, IL 4. Mechanical Sciences and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL