Abstract: Exemplary computer-accessible medium, systems, and methods are described herein which can provide an excited fluorescence radiation. In accordance with certain exemplary embodiments of the present disclosure, an excited fluorescence radiation can be provided using a beam of a probe so as to excite a molecule to an excited state for a fluorescence emission to effectuate the excited fluorescence radiation. The molecule can be detected based on the fluorescence emission. For example, the beam of the probe can be either the near-infrared spectrum or the visible light spectrum.