The goal of this research is development of fabrication technique for nano-structure using an "evanescent field". The light, going from dielectric field to vacuum one, is all reflected when the incident angle is larger than critical angle determined by refractive index of dielectric mediums. In this situation, electromagnetic field oozes out of dielectric resign to vacuum media. This "evanescent field" decays exponentially as a function of distance which is several hundred nano-meter from the surface of dielectric field. In this research, I fabricated nano-scale thin film, as a clad of optical fiber, of biomimetic material using the evanescent field polymerization. The biomimetic material is carried out by molecular imprinting technique, which is a process where functional and cross-linking monomers are co-polymerized in the presence of the target analye (the imprint molecule). The system can be used for chemical sensor of environmental monitoring.