@misc{misce56b94b2,
title   = {Optical nonlinearities and thermal lens effect of a-Si:H films investigated by Z-scan technique},
author = {Espinosa, Daniel Humberto Garcia and Onmori, Roberto Koji},
year = {2012},
doi = {10.1016/j.phpro.2012.03.666},
booktitle   = {Brazilian Workshop on Semiconductor Physics}
}