Projects per year
We study the electromagnetic response and surface electromagnetic modes in a generic gapped Dirac material under pumping with circularly polarized light. The valley imbalance due to pumping leads to a net Berry curvature, giving rise to a finite transverse conductivity. We discuss the appearance of nonreciprocal chiral edge modes, their hybridization and waveguiding in a nanoribbon geometry, and giant polarization rotation in nanoribbon arrays.
Bibliographical noteFunding Information:
National Science Foundation http://dx.doi.org/10.13039/100000001 NSF http://sws.geonames.org/6252001/ http://sws.geonames.org/6254928/ CMMI-1120724 DMR-1420013 Air Force Office of Scientific Research http://dx.doi.org/10.13039/100000181 AFOSR http://sws.geonames.org/6252001/ http://sws.geonames.org/6254928/ FA9550-12-1-0488 A.K. and N.X.F. acknowledge the financial support by the NSF (Grant No. CMMI-1120724) and AFOSR MURI (Award No. FA9550-12-1-0488). K.H.F. acknowledges financial support from Hong Kong RGC Grant No. 15300315. T.L. acknowledges support from the MRSEC Program of the National Science Foundation under Award No. DMR-1420013.
How much support was provided by MRSEC?
Reporting period for MRSEC
- Period 3