US Patent 6859313 Super resolution microscope

A microscope includes a first light source to emit a first light to excite a molecule of a sample to a higher energy level vibration state which belongs to a lowest energy level electron state from the ground state, a second light source to emit a second light source to excite the molecule to a higher energy level quantum state from the higher energy vibration state, an optical system to overlap the first light and the second light partially on the sample, and an optical detector to detect a given fluorescence from the irradiated region of the first light and the second light on the sample.