Author Affiliations

Jonathan C. Petruccelli,^1,* Lei Tian,² Xiaogang Liu,^1,3 and George Barbastathis^1,2

¹Singapore-MIT Alliance for Research and Technology (SMART) Centre, 3 Science Drive 2, Singapore 117543, Singapore

²Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA

³Currently with Department of Physics, University of Cambridge, J J Thomson Avenue, Cambridge, CB3 0HE, UK

^*Corresponding author: jcp@smart.mit.edu