by J. Olivares, A. García-Navarro, G. García, A. Méndez, F. Agulló-López, A. García-Cabañes, M. Carrascosa and O. Caballero
Abstract:
A novel method to produce optical waveguides is demonstrated for lithium niobate (LiNbO3). It is based on electronic excitation damage by swift ions, i.e., with energies at approximately 1 MeV/amu or above. The new technique uses high-energy medium-mass ions, such as Cl, with electronic stopping powers above the threshold value for amorphization (5-6 keV/nm), reaching the maximum value a few micrometers inside the crystal. At the ultralow fluence regime (1012-1013 cm−2) an effective nanostructured medium is obtained that behaves as an optical waveguide where light propagates transversally to the amorphous nanotracks created by every single impact. The method implies a reduction of 4 orders of magnitude with respect to He implantation. The optical waveguides present reasonable losses (∼10 dB/cm) and significant second-harmonic generation (SHG) and electro-optic (EO) responses (textgreater50% bulk) for the lowest fluences.
Reference:
J. Olivares, A. García-Navarro, G. García, A. Méndez, F. Agulló-López, A. García-Cabañes, M. Carrascosa and O. Caballero, “Nonlinear optical waveguides generated in lithium niobate by swift-ion irradiation at ultralow fluences”, Optics Letters, vol. 32, no. 17, pp. 2587–2589.
Bibtex Entry:
@article{olivares_nonlinear_2007,
title = {Nonlinear optical waveguides generated in lithium niobate by swift-ion irradiation at ultralow fluences},
volume = {32},
copyright = {© 2007 Optical Society of America},
issn = {1539-4794},
url = {https://www.osapublishing.org/abstract.cfm?uri=ol-32-17-2587},
doi = {10.1364/OL.32.002587},
abstract = {A novel method to produce optical waveguides is demonstrated for lithium niobate (LiNbO3). It is based on electronic excitation damage by swift ions, i.e., with energies at approximately 1 MeV/amu or above. The new technique uses high-energy medium-mass ions, such as Cl, with electronic stopping powers above the threshold value for amorphization (5-6 keV/nm), reaching the maximum value a few micrometers inside the crystal. At the ultralow fluence regime (1012-1013 cm−2) an effective nanostructured medium is obtained that behaves as an optical waveguide where light propagates transversally to the amorphous nanotracks created by every single impact. The method implies a reduction of 4 orders of magnitude with respect to He implantation. The optical waveguides present reasonable losses (∼10 dB/cm) and significant second-harmonic generation (SHG) and electro-optic (EO) responses ({textgreater}50% bulk) for the lowest fluences.},
language = {EN},
number = {17},
journal = {Optics Letters},
author = {Olivares, J. and García-Navarro, A. and García, G. and Méndez, A. and Agulló-López, F. and García-Cabañes, A. and Carrascosa, M. and Caballero, O.},
month = sep,
year = {2007},
keywords = {Lithium niobate, integrated optics, Nonlinear, Nonlinear optics},
pages = {2587--2589},
file = {Snapshot:E:\cmam_papers\files\637\abstract.html:text/html;Snapshot:E:\Usuarios\Administrator\Zotero\storage\QJ2YEESL\abstract.html:text/html},
}