| Presentation | 1995/9/22 Evaluation of rotated Y-cut LiNbO_3 and LiTaO_3 crystals by line-focus-beam acoustic microscopy Katsuyuki TAKAHASHI, Hiroki ISHJI, Naoyuki AKASHI, Jun-ichi KUSHIBIKI, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, theretical and experimental studies on propagation characteristics of leaky waves, excited on the water/sample boundary, are carried out for 36°Y-cut LiNbO_3 and 36°Y-cut LiTaO_3 as a function of the wave propagation direction. Theretical results show that the propagation direction of leaky waveson rotated Y-cut LiNbO_3 and rotated Y-cut LiTaO_3 should be chosen along the X-axis to measure the propagation characteristics of phase ve1ocity and attenuation factor. It is theretically shown that there exist two kind of leaky sdace acoustic wave (LSAW) and leaky pseudo-surface acoustic wave (LPSAW) modes, but, LPSAW mode has very low excitation efficiency. It is demonstrated at 225 MHz that a Rayleigh-type LSAW mode, rather than an SH-type LPSAW mode, must be used for characterization. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | rotated Y-cut LiNbO_3 / rotated Y-cut LiTaO_3 / 1ine-focus-beam acoustic microscopy / water loading / 1eaky surface acoustic wave / leaky pseudo-surface acoustic wave |
| Paper # | US95-48 |
| Date of Issue |
| Conference Information | |
| Committee | US |
|---|---|
| Conference Date | 1995/9/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Ultrasonics (US) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation of rotated Y-cut LiNbO_3 and LiTaO_3 crystals by line-focus-beam acoustic microscopy |
| Sub Title (in English) | |
| Keyword(1) | rotated Y-cut LiNbO_3 |
| Keyword(2) | rotated Y-cut LiTaO_3 |
| Keyword(3) | 1ine-focus-beam acoustic microscopy |
| Keyword(4) | water loading |
| Keyword(5) | 1eaky surface acoustic wave |
| Keyword(6) | leaky pseudo-surface acoustic wave |
| 1st Author's Name | Katsuyuki TAKAHASHI |
| 1st Author's Affiliation | Department of Electrical Engineering, Faculty of Engineering, Tohoku University() |
| 2nd Author's Name | Hiroki ISHJI |
| 2nd Author's Affiliation | Department of Electrical Engineering, Faculty of Engineering, Tohoku University |
| 3rd Author's Name | Naoyuki AKASHI |
| 3rd Author's Affiliation | Department of Electrical Engineering, Faculty of Engineering, Tohoku University |
| 4th Author's Name | Jun-ichi KUSHIBIKI |
| 4th Author's Affiliation | Department of Electrical Engineering, Faculty of Engineering, Tohoku University |
| Date | 1995/9/22 |
| Paper # | US95-48 |
| Volume (vol) | vol.95 |
| Number (no) | 252 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |