ELECTROMAGNETIC WAVES AT AN INTERFACE
INTRODUCTIO
N
Changes in the educational process only
materialize when the protagonist
emerges. He is involved. Just combine
the fact that the Information
Technology tool for classroom work
without any promise of educational
transformation. Because we feel a
responsibility to be part of it, we are
making efforts to use alternative media
as teaching tools, in particular, software
that builds on students' understanding
of the subject.
DESCRIPTION OF
THE SOFTWARE
SCREENS
Fresnel Coefficients Screen: Graphical representation of the
amplitude coefficient as a function of the angle of incidence.
This linear, isotropic, homogeneous media representation for
external and internal reflections is calculated and drawn by a
software program based on input data.
Convention Screen: Graphical representation of the
polarization states of the parallel components and the plane
of incidence perpendicular to the electric field vector, from
which the Fresnel equations used in the software program
are derived. There is no polarization that represents the
magnetic field vector, which is determined by the Poynting
elector.
Simulation:
Incidence plane.
Plane of separation between the two media
Paths: Wave propagation direction (optional display)
The planes perpendicular to the plane of incidence
that contain the field vectors (optional display)
Incident Propagation (OEM) and the corresponding
reflection and transmission propagation from its
incidence on an interface: This propagation is
simulated, visualizing the different positions that a set
of vectors will take, representing different states of
the electric field over time . Optional ditto for fields.
Data:
The values of the significant variables: ni , nt , qi , .qt ,
and f0., which can be modified. The precision with which
they can be chosen is 2 tenths for the indices and 5º for
the angles.
The polarization angle and the critical angle, determined
by the program according to the values chosen in 1.
The colors that characterize the incident electric and
magnetic field vectors.
Controls:
Of data:
Instructions for changing data
For display:
Rotate Camera: varies the perspective of the image
producing rotations in Simulation space.
Zoom: allows the magnification of the scale.
Stop: Freezes the wave propagation at any time.
Trigger: start the simulation of the propagation in the
simulation space.
