of Beam Propagation and Finite Difference Time Domain Techniques in
bidirectional beam propagation method extends the beam propagation method
(BPM) to simulate general reflective photonic devices, retaining the
efficiency of BPM. Its primary applications include laser-facet, anti-reflection/high-reflection
coatings, gratings, etc. I will talk a bit more of its application to
VCSEL designs. In photonic device computations where BPM solutions are
not adequate, Finite-Difference Time-Domain (FDTD) is usually the method
of choice. Despite its accuracy and flexibility, FDTD is very time consuming.
The recently proposed ADI-FDTD technique is one effort to increase the
efficiency of FDTD. Based on it, my current work is to further improve
it to gain more substantial speed-up. The demonstration is being done
on photonic crystals.