An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Peschel U, Etrich C, Lederer F.Peschel U, et al. Among authors: etrich c.Opt Lett. 1998 Apr 1;23(7):500-2. doi: 10.1364/ol.23.000500.Opt Lett. 1998.PMID: 18084556
Iliew R, Etrich C, Lederer F, Staliunas K.Iliew R, et al. Among authors: etrich c.Opt Lett. 2010 Dec 1;35(23):3907-9. doi: 10.1364/OL.35.003907.Opt Lett. 2010.PMID: 21124561
Kim MS, Scharf T, Etrich C, Rockstuhl C, Peter HH.Kim MS, et al. Among authors: etrich c.Opt Lett. 2012 Feb 1;37(3):305-7. doi: 10.1364/OL.37.000305.Opt Lett. 2012.PMID: 22297334Free article.
Augustin M, Fuchs H, Schelle D, Kley E, Nolte S, Tünnermann A, Iliew R, Etrich C, Peschel U, Lederer F.Augustin M, et al. Among authors: etrich c.Opt Express. 2003 Dec 1;11(24):3284-9. doi: 10.1364/oe.11.003284.Opt Express. 2003.PMID: 19471456Free article.