Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Pulsed laser deposition of ferroelectric potassium tantalate-niobate optical waveguiding thin films

: Jia, Yuechen; Winkler, Markus; Cheng, Chen; Chen, Feng; Kirste, Lutz; Cimalla, Volker; Zukauskaite, Agne; Szabados, Jan; Breunig, Ingo; Buse, Karsten

Fulltext (PDF; )

Optical Materials Express 8 (2018), No.3, pp.541-548
ISSN: 2159-3930
Journal Article, Electronic Publication
Fraunhofer IPM ()
Fraunhofer IAF ()
thin film; waveguide; pulsed laser deposition

We present the epitaxial growth of ferroelectric potassium tantalate-niobate (KTN) thin films by pulsed laser deposition. As a result of the optimization of the deposition and the surface finishing processes, a c-axis oriented KTa0.5Nb0.5O3 thin film with homogeneous polarization phase grown on KTaO3 and an efficient KTa0.5Nb0.5O3 waveguiding thin film grown on MgO are demonstrated. The highly improved crystalline and optical quality of KTN layers grown in this work reveal the great potential of such films for integrated nonlinear optics.