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Abstract
We developed novel recording/erasing system using only one laser source and polymeric liquid crystal material. To do this, LCP-105(Merck) was adapted for recording material and investigated the possibility of repeated optical recording and thermal erasing. After optical recording (7mW, 830nm) on SCLCP disk, recorded signal represented 32dB and this signal was completely diminished by heat treatment of recorded disk (85°C, 30sec). These results illustrate the possibility of recording/ erasing system by laser irradiation of same laser source (same wavelength).