Reflection-induced spectral changes of the pulsed radiation emitted by a point source.
We calculate the field emitted by a pulsed point source above a planar interface. It is found that the observed power spectrum can differ significantly from the emitted spectrum. Also, the observed power spectrum depends strongly on the wave speeds in the two media and on the position of the observation point with respect to the interface and the source.
Wiersma
S H
SH
Department of Physics and Astronomy, Free University, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands.
Visser
T D
TD
de Hoop
A T
AT