학술논문
Brillouin spectroscopy applied to the characterization of SAW propagation losses in langasite
Document Type
Conference
Author
Source
2010 IEEE International Ultrasonics Symposium Ultrasonics Symposium (IUS), 2010 IEEE. :539-542 Oct, 2010
Subject
Language
ISSN
1051-0117
1948-5727
1948-5719
1948-5727
1948-5719
Abstract
High performance Brillouin microscopy has been used in order to directly measure the propagation losses of surface acoustic wave in Langasite substrate. The interdigital transducers (IDTs) were designed to generate several harmonics leading to induce acoustic waves with different wavelengths. The induced phonons were detected and characterized at different frequencies and at different distance from IDTs leading to precisely determine the propagation losses for all the excited frequencies 681, 1267 and 1463 MHz.