Ruby grains are synthesized by laser heating of the dry mixture of Al2O3 and Cr2O3. Quasi-continuous radiation of a Nd:YAG laser was used for this purpose with average power of 15 W. Synthesized ruby grains demonstrate strong photo-luminescence in the vicinity of 700 nm. Synthesized ruby grains were integrated into a matrix made of flouro-polymer. Luminescene map acquired with the help of a photo-fluorimeter confirms efficient photo-conversion of green-blue radiation of the synthesize ruby into red region. Ruby grans can further be fragmented to smaller particles using the technique of laser fragmentation in liquids.
@article{arxiv.2209.08062,
title = {Laser synthesis of ruby for photo-conversion of solar spectrum},
author = {K. O. Aiyyzhy and E. V. Barmina and G. A. Shafeev},
journal= {arXiv preprint arXiv:2209.08062},
year = {2023}
}