Abstract
Exact analytical results are derived for the coupled system of nondissipative single mode quantized harmonic oscillator (HO) and arbitrary pulse shape. Specifically, for a sin(2)-pulse shape, the transient fluorescent spectrum is obtained in the general case of initial coherent state vertical bar alpha > of the HO. The dominant central Lorentzian is surrounded by weak oscillations due to the larger number of sequential pulses which get amplified asymmetrically in the nonresonant case as a result of balancing and interference processes between the initial excitation (vertical bar alpha(2)vertical bar) and the strength of the exciting pulse. Further pronounced oscillations is noticed with " hole burning" structure in the central peak due to nonzero phase of the initial amplitude (alpha).