@article{article2350458d,
title   = {Optical diffraction grattings produced by laser interference structuring of amorphous germanium-nitrogen alloys},
author = {Mulato, Marcelo and Zanatta, Antonio Ricardo and Toet, D and Chambouleyron, I E},
year = {2002},
doi = {10.1063/1.1512307},
journal   = {Applied Physics Letters}
}