Epitaxial LiNbO[sub 3] thin films grown by pulsed laser deposition for optical waveguides

Balestrino, G.; Martellucci, S.; Medaglia, P. G.; Paoletti, A.; Petrocelli, G.; Tebano, A.; Tucciarone, A.; Gelli, F.; Giorgetti, E.; Sottini, S.; Tapfer, L.
February 2001
Applied Physics Letters;2/26/2001, Vol. 78 Issue 9, p1204
Academic Journal
We have grown good-quality epitaxial LiNbO[sub 3] thin films on (0001) sapphire substrates using a pulsed laser deposition technique. The growth conditions permitted us to deposit c-axis oriented films avoiding the problem of the LiNb[sub 3]O[sub 8] Li-deficient phase. The chemical composition of thin films was investigated by secondary ion mass spectrometry and resulted to coincide with the target composition. Guided propagation was demonstrated at 632 and 488 nm with thin films (∼1200 Å). © 2001 American Institute of Physics.


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