Optical clarity and waveguide performance of thin film perovskites on MgO

• Published in: Applied physics letters Vol. 65; no. 12; pp. 1495 - 1497
• Main Authors: Walker, F. J., McKee, R. A., Yen, Huan-wun, Zelmon, D. E.
• Format: Journal Article
• Language: English
• Published: United States 19-09-1994
• Subjects: 360204 - Ceramics, Cermets, & Refractories- Physical Properties; ABSORPTIVITY; ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; ELECTRONIC CIRCUITS; ENERGY LOSSES; EPITAXY; INTEGRATED CIRCUITS; LOSSES; MAGNESIUM COMPOUNDS; MAGNESIUM OXIDES; MATERIALS SCIENCE; MICROELECTRONIC CIRCUITS; MINERALS; MOLECULAR BEAM EPITAXY; OPTICAL PROPERTIES; OXIDES; OXYGEN COMPOUNDS; PEROVSKITES; PHYSICAL PROPERTIES; STRONTIUM COMPOUNDS; THIN FILMS; TITANATES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; WAVEGUIDES
• ISSN: 0003-6951; 1077-3118
• DOI: 10.1063/1.112023

The optical clarity of a new class of thin film waveguides, epitaxial perovskites on MgO, has been characterized and found to have optical clarity comparable to in-diffused waveguide structures typically represented by Ti drifted LiNbO3. For the simplest member within this new class, SrTiO3, measurements of the wavelength dependence of optical loss show a monotonic decrease with increasing wavelength between 475 and 705 nm, reaching a value of 1 dB/cm at 705 nm.