Send to

Choose Destination
See comment in PubMed Commons below
Opt Lett. 2012 Aug 1;37(15):3237-9. doi: 10.1364/OL.37.003237.

Giant Faraday and Kerr rotation with strained graphene.

Author information

Information Storage and Materials Laboratory, Electrical and Computer Engineering Department, National University of Singapore, Singapore.


Polarized electromagnetic waves passing through (reflected from) a dielectric medium parallel to a magnetic field undergo Faraday (Kerr) rotation of their polarization. Recently, Faraday rotation angles as much as 0.1 rad were observed for terahertz waves propagating through graphene over a SiC substrate. We show that the same effect is observable with the magnetic field replaced by an in-plane strain field which induces a pseudomagnetic field in graphene. With two such sheets a rotation of π/4 can be achieved, which is the required rotation for an optical diode. Similarly a Kerr rotation of 1/4 rad is predicted from a single reflection from a strained graphene sheet.

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Loading ...
    Support Center