Epitaxial LiNbO3 Thin Films Grown by Pulsed Laser Deposition for Optical Waveguides (Articolo in rivista)

Type
Label
  • Epitaxial LiNbO3 Thin Films Grown by Pulsed Laser Deposition for Optical Waveguides (Articolo in rivista) (literal)
Anno
  • 2001-01-01T00:00:00+01:00 (literal)
Alternative label
  • Balestrino G. 1, Martellucci S. 1,Medaglia P.G. 1, Paoletti A. 1, Petrocelli G. 1, Tebano A. 1, Tucciarone A. 1, Gelli F. 1, Giorgetti E. 2, Sottini S. 2, Tapfer L. 3 (2001)
    Epitaxial LiNbO3 Thin Films Grown by Pulsed Laser Deposition for Optical Waveguides
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Balestrino G. 1, Martellucci S. 1,Medaglia P.G. 1, Paoletti A. 1, Petrocelli G. 1, Tebano A. 1, Tucciarone A. 1, Gelli F. 1, Giorgetti E. 2, Sottini S. 2, Tapfer L. 3 (literal)
Pagina inizio
  • 1204 (literal)
Pagina fine
  • 1206 (literal)
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  • 78 (literal)
Rivista
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  • Lithium niobate (LiNbO3) is a well-known and intensively studied ferroelectric material. Due to its large piezoelectric, pyroelectric, electro-optic, and photoelastic coefficients, and to its acusto-optic and birefringence properties,1 LiNbO3 is extremely suitable for a wide range of applications. LiNbO3 thin films have been successfully grown by different deposition techniques: Molecular beam epitaxy,2 liquid phase epitaxy,3,4 rf and magnetron sputtering,5,6,7,8,9,10 and sol-gel processes.11,12 More recently, good quality LiNbO3 thin films were deposited by pulsed laser deposition (PLD) on different substrates.13,14,15,16,17,18 In this letter, we report the results concerning the epitaxial growth by pulsed laser deposition of high quality LiNbO3 thin films on (0001) sapphire substrates and their characterization as optical waveguides.Actually epitaxial good quality growth of c-axis oriented LiNbO3 thin films was achieved on (0001) Al2O3 substrate by using pulsed laser deposition. SIMS investigations confirmed that samples have the right chemical compositions, and that the problem of a Li deficiency was avoided, most likely due to the choice of the growth conditions. Waveguiding at 632 and 488 nm was demonstrated with LiNbO3 thin films grown on (0001) sapphire substrates. Further research in this field was planned by our group in cooperation with Petrocelli and Martellucci, University of Roma II, to realize PPLN films but it was frustrated by want of financial support. (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • 1 Università di Roma Tor Vergata; 2 IFAC-CNR; 3 PASTIS-CNRSM di Brindisi. (literal)
Titolo
  • Epitaxial LiNbO3 Thin Films Grown by Pulsed Laser Deposition for Optical Waveguides (literal)
Abstract
  • We have grown good-quality epitaxial LiNbO3 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 LiNb3O8 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. (literal)
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