A generalized acoustic-mode dispersion analysis of a multilayer guiding structure that includes a combination of homogeneous layers of materials with well-defined mechanical and piezoelectric properties is developed. A few examples are also presented that are relevant to a simple bulk LiNbO3 structure and to ZnO/GaAs and ZnO/GaAs/AlGaAs/GaAs composite structures. In particular, a surface acoustic-wave velocity of 3734 m/sec is calculated for a Y-cut LiNbO3 monolayer, 1.4-mu-m thick, at an acoustic frequency of f = 650 MHz, which is in good agreement with the value in the literature, the difference being less than 1%.
Acoustic-mode analysis of a homogeneous multilayer guiding structure / Armenise, Mario N.; Passaro, Vittorio; Impagnatiello, Fabrizio. - In: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. B, OPTICAL PHYSICS. - ISSN 0740-3224. - STAMPA. - 8:2(1991), pp. 443-448. [10.1364/JOSAB.8.000443]
Acoustic-mode analysis of a homogeneous multilayer guiding structure
Mario N. Armenise;Vittorio Passaro;
1991-01-01
Abstract
A generalized acoustic-mode dispersion analysis of a multilayer guiding structure that includes a combination of homogeneous layers of materials with well-defined mechanical and piezoelectric properties is developed. A few examples are also presented that are relevant to a simple bulk LiNbO3 structure and to ZnO/GaAs and ZnO/GaAs/AlGaAs/GaAs composite structures. In particular, a surface acoustic-wave velocity of 3734 m/sec is calculated for a Y-cut LiNbO3 monolayer, 1.4-mu-m thick, at an acoustic frequency of f = 650 MHz, which is in good agreement with the value in the literature, the difference being less than 1%.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
