Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Numerical Investigation of Vertical Cavity Lasers with Subwavelength
  Gratings Using the Fourier Modal Method   We show the strength of the Fourier modal method (FMM) for numerically
investigating the optical properties of vertical cavities including
subwavelength gratings. Three different techniques for determining the
resonance frequency and Q-factor of a cavity mode are compared. Based on that,
the Fabry-Perot approach has been chosen due to its numerical efficiency. The
computational uncertainty in determining the resonance frequency and Q-factor
is investigated, showing that the uncertainty in the Q-factor calculation can
be a few orders of magnitude larger than that in the resonance frequency
calculation. Moreover, a method for reducing 3D simulations to
lower-dimensional simulations is suggested, and is shown to enable approximate
and fast simulations of certain device parameters. Numerical calculation of the
cavity dispersion, which is an important characteristic of vertical cavities,
is illustrated. By employing the implemented FMM, it is shown that adiabatic
heterostructures designs are advantageous compared to abrupt heterostructures
for minimizing the cavity scattering loss.

34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th