IBM Release 1.93 manual COMMAND Group, OUTPUT Group, Parameters x y z Ex Ey Ez mag phase

Models: Release 1.93

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POINT

Adds a linearly-polarized point electric dipole source at the given

 

position. Point sources whose polarization is not x, y, or z

 

(diagonally, circularly, or elliptically polarized) can be implemented

 

as two or three point sources with appropriately chosen magnitude

 

and phase.

 

Parameters: x y z Ex Ey Ez mag phase

 

 

 

 

3.1.7. COMMAND Group

COMPUTE

Supply control parameters to FIDO/TEMPEST. Parameters mincycles

 

and maxcycles control the number of cycles of the excitation

 

frequency that each simulation may use; setting the lower limit

 

occasionally helps in avoiding spurious early convergence, and the

 

upper puts a bound on the amount of run time. Adjusting

 

maxcycles to a small number such as 1-3 is useful when setting up a

 

run, because you can get rapid feedback on whether your geometry

 

is correct, and whether your PMLs are likely to cause problems.

 

Slightly higher values are useful in the early stages of an

 

optimization, where extreme accuracy in penalty function evaluation

 

is not needed, but run time is a serious concern. See the TEMPEST

 

documentation for more details. Start with a value of 0.01 or 0.001

 

for reltolerance, and don’t set mincycles or timestep until you really

 

need to.

 

Parameters: reltolerance maxcycles mincycles timestep

 

 

 

 

3.1.8. OUTPUT Group

INDEXN

Tells tempest to produce a field file containing the real part of the

 

refractive index at each point. This is useful to show which

 

material is where in the simulation domain.

 

Parameters: xlo xhi ylo yhi zlo zhi file

 

 

 

 

DECIMATE

Specify that only 1 out of decimation points is to be kept in each axis.

 

Parameters: xdecimation ydecimation zdecimation

 

Not implemented in this release.

 

 

 

 

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IBM Release 1.93 COMMAND Group, OUTPUT Group, Parameters x y z Ex Ey Ez mag phase, Parameters xlo xhi ylo yhi zlo zhi file