▎ 摘　　要

Strain effect on guided modes and electron transmission through the strained graphene waveguide with oscillating potential are explored theoretically. It is found that the guided mode in the waveguide can be controlled by zigzag or armchair direction strain. The transmission spectrum obtained displays a sharply asymmetric tunneling peak, where the energy difference between the tunneling peak and guided mode is equal to the photon induced by the oscillating potential. In view of the quantitative relationship, we propose the photon-assisted tunneling to probe the strain-tunable guided modes. (C) 2013 The Japan Society of Applied Physics