Abstract
Acoustic whispering gallery modes (WGMs) in a micro-quartz tube immersed in liquid medium, excited by the evanescent wave of a Lamb wave device, are demonstrated. These excited WGMs exhibit characteristics similar to those of optical WGMs, such as narrow periodic transmission dips and a high quality factor. These results show the possibility to build acoustic sensors, filter and acoustic resonators working in liquid with improved performance.
Original language | English |
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Pages (from-to) | 335-338 |
Number of pages | 4 |
Journal | Sensors and Actuators A: Physical |
Volume | 189 |
DOIs | |
Publication status | Published - 2013 |
Externally published | Yes |
Keywords
- Lamb wave
- Whispering gallery mode