Display Settings:


Send to:

Choose Destination
See comment in PubMed Commons below
J Opt Soc Am A Opt Image Sci Vis. 2005 Sep;22(9):1805-13.

Numerical study on spectral properties of tungsten one-dimensional surface-relief gratings for spectrally selective devices.

Author information

  • 1Toyota Technological Institute, Hisakata 2-12-1, Tempaku-ku, Nagoya, 468-851, Japan. sai@toyota-ti.ac.jp


Spectral properties of one-dimensional tungsten gratings with various depths and widths of grooves were investigated by means of finite-difference time-domain simulation with a multi-Lorentz model. Shallow gratings showed a strong absorption peak due to surface plasmon polaritons when the oscillation of the electric field was parallel to the grating vector. On the other hand, deep gratings with wide grooves showed a different absorption attributed to the microcavity effect when the oscillation of the electric field was perpendicular to the grating vector. With narrowed grooves, another absorption with d-dependence occurred, which was probably due to vertically oscillating surface plasmons to the grooves.

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Icon for Optical Society of America
    Loading ...
    Write to the Help Desk