Luminescence of single-particle ceramic phosphor by proximity measurement

Abstract

Abstract A simple method for measuring the luminescence of a single-particle phosphor was developed. Optical fibers for excitation and detection were placed in proximity to the single-particle material to eliminate the requirement for additional optical parts and enable high-precision measurement using commercial instruments. In relation to the background level, the developed method had a sufficient sensitivity margin, allowing phosphor evaluation with a particle size as small as 1.2 μm.