This paper describes the preparation of a dendritic macromolecule having a rhodamine B chromophore, called Rh-dendrimer, and the emission properties from the neat films due to the spontaneous emission and super-radiative emission. An important concept to be investigated for material preparation, is the surrounding of a fluorescent chromophore by the dendritic branches. Therefore, a dendrimer becomes a core-shell structure, achieving a high efficiency of fluorescence with little energy transfer and self-quenching. The. optical properties from dendrimer were very different from that of a bare chromophore. The Rh-dendrimer showed a high efficiency of fluorescence, while a bared rhodamine chromophore formed a charge transferred complex and exhibited less fluorescence. Under optical excitation with sufficient intensity (I-0), the emission intensity was non-linearly increased as a function of the square of the number of molecules (N), giving relation of I alpha (NI0)-I-2. This property cannot be adequately explained within the simple picture of spontaneous emission. Results were discussed in terms of cooperative emission.