Send to:

Choose Destination
See comment in PubMed Commons below
Opt Lett. 2006 May 15;31(10):1510-2.

Enhanced second-harmonic generation for multiple wavelengths by defect modes in one-dimensional photonic crystals.

Author information

  • 1Institute of Physics, Chinese Academy of Sciences, Beijing, China.


We present an effective design of aperiodically stacked layers of nonlinear material and air, sandwiched by two truncated photonic crystals, in terms of the simulation annealing method. The constructed structure can achieve multiple-wavelength second-harmonic generation (SHG) at the preassigned wavelengths. We derive a general solution of SHG in 1D inhomogeneous systems and apply it to evaluate the SHG conversion efficiency. Numerical simulations show that the conversion efficiency of SHG can be significantly enhanced when the fundamental wave frequencies are assigned to the designed defect states.

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

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