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유연석,한두교 청주대학교 산업과학연구소 1992 産業科學硏究 Vol.10 No.-
We study self-diffraction by degenerate two-wave mixing(DTWM) and nondegenerate two-wave mixing(NDTWM) characteristics of cw Ar-ion laser radiation from thin film of boric acid glass doped with acridine yellow. The intensity dependence of the self-diffraction efficiency in various orders of diffraction is measured. A gain saturation effect in NDTWM in the process of energy transfer has been observed.
邊大鉉,趙昌熙,韓斗敎 弘益大學校 1987 弘大論叢 Vol.19 No.2
In this study induced thermally stimulated current by the TSC was measured by the open circuit method after implanting Na+ ion into a PET film. With the result, using a new theory, activated energy, escape frequency, relaxation time and ion density was evaluated. (-) peak appeared at 363 K and 390 K when temperature increasing rate was 0.1 K/sec. and a (+) peak in the range 310~350 K. As a result of analysis, the peak at 363 K was by Na^(+) ion trapped in the surface trap and the activated energy 1. 14eV. 390 K peak had 1.66 eV activated energy and was by Na+ ion trapped in a vacance. The TSC current of 390 K peak was proportional to nuclear stopping power.