Title :
Impact of domain depth on SAW generation by acoustic superlattice transducer in 128° YX-cut lithium niobate
Author :
Yudistira, Didit ; Boes, A. ; Rezk, Amgad ; Crasto, T. ; Steigerwald, H. ; Soergel, E. ; Friend, James ; Mitchell, A.
Author_Institution :
Sch. of Electr. & Comput. Eng., RMIT Univ., Melbourne, VIC, Australia
Abstract :
Surface acoustic wave (SAW) generation on 128° YX acoustic superlattice has been investigated by considering the finite-depth of the domain created by the UV direct-domain writing. We found that bound and localized SAW will be generated when the domain depth of the ASL structure, underlying the transducer, is smaller and bigger than the lattice period, respectively. Efficient bound SAW can be achieved, provided the domain depth is 30% of the lattice period.
Keywords :
lithium compounds; superlattices; surface acoustic wave transducers; ASL structure; LiNbO3; SAW generation; UV direct-domain writing; YX-cut lithium niobate; acoustic superlattice transducer; domain depth; surface acoustic wave; Periodic structures; Writing; domain inversion; lithium niobate; surface acoustic wave;
Conference_Titel :
Applications of Ferroelectric and Workshop on the Piezoresponse Force Microscopy (ISAF/PFM), 2013 IEEE International Symposium on the
Conference_Location :
Prague
DOI :
10.1109/ISAF.2013.6748666
