Abstract
We have prepared crystalline beta barium borate, β-BaB 2O 4 (the so-called BBO), thin films on several kinds of substrates using pulsed laser deposition (PLD) and opposed-targets magnetron sputtering (OTMS) techniques. From the measurement of X-ray diffraction, we have found that the crystallinity of the BBO film grown by both techniques is highly dependent on the deposition temperature and the choice of the substrates. There is a different phase transition temperature for the BBO films grown on different substrates and by different deposition techniques. The best films obtained were the ones grown on a sapphire (0 0 0 1) substrate at a deposition temperature of 800°C by PLD and 700°C by OTMS, which show a single X-ray diffraction (0 0 6) peak normal to the surface of the film. The second harmonic generation (SHG) signal of these films reveals a 6-fold symmetry with a large magnitude contrast between its maximum (1.2 pm/V) and minimum (0.2 pm/V).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
