Abstract:
Provided is a nonlinear optical material an optical recording maternal, an optical recording method, a photosensitive material, a photopolymerization initiator, and a photosensitizer. One exemplary aspect of the present invention is a photosensitive material used for photolithography for forming a pattern by irradiating a photoresist with excitation light which includes a donor molecule 11 that is excited by the excitation light, and an acceptor molecule 12 that is excited by energy transfer or charge transfer from the excited donor 11.