With the use of variational method of Pekar type, we have calculated b
oth the ground state energy and the excited state energy of strong cou
pling magnetopolaron in disk-shape quantum dot. The dependence of cycl
otron resonance frequency of magnetopolaron on the magnetic field and
the confinement strength of quantum dot and quantum well is depicted.
The limiting case of bulk type and strict two-dimensional type is disc
ussed.