Format

Send to:

Choose Destination
See comment in PubMed Commons below
Opt Lett. 2012 Jul 15;37(14):2937-9. doi: 10.1364/OL.37.002937.

Refraction-based photonic crystal diode.

Author information

  • 1Department of Physics, Faculty of Arts and Sciences, Mehmet Akif Ersoy University, 15100 Burdur, Turkey.

Abstract

A system composed of air holes in a dielectric host to form two square photonic crystals, with the same orientation and lattice constant but different scatterer radii, making an interface along their body diagonals, is numerically demonstrated to facilitate unidirectional light transmission. Band structure computations are carried out via the plane wave expansion method, whereas finite-difference time-domain simulations are carried out to investigate the transient behavior. Unidirectional light transmission is achieved over two adjacent stop bands along the ΓX direction, which are circumvented in the forward direction by scaling down the wave vector and rotating the surface normal. Contrast ratios as high as 0.9 are attained within the lower stop band.

PMID:
22825184
[PubMed]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Loading ...
    Write to the Help Desk