Temperature dependence of the thermal coefficient of optical path in the vitreous system PANK - Filho, J. C.; Zílio, Sérgio Carlos; Messias, D. N.; Pilla, V.; Silva, A. C.; Dantas, N. O.; Andrade, A. A. (International Conference on Optical, Optoelectronic and Photonic Materials and Applications - ICOOPMA, 2018)