  We investigate scarred resonances of a stadium-shaped chaotic microcavity. It
is shown that two components with different chirality of the scarring pattern
are slightly rotated in opposite ways from the underlying unstable periodic
orbit, when the incident angles of the scarring pattern are close to the
critical angle for total internal reflection. In addition, the correspondence
of emission pattern with the scarring pattern disappears when the incident
angles are much larger than the critical angle. The steady probability
distribution gives a consistent explanation about these interesting phenomena
and makes it possible to expect the emission pattern in the latter case.
