Reflection of high-frequency acoustic phonons from solid-liquid interfaces studied by picosecond ultrasonics

✍ Scribed by G. Tas; C.J. Morath; H.J. Maris

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 204 KB
• Volume: 219-220
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(95)00844-6

✦ Synopsis

We have studied the reflection of coherent acoustic phonons at frequencies up to 300 GHz from solid-liquid interfaces using a picosecond ultrasonic technique. We report measurements of the magnitude of the reflection coefficient between both a-Si3N4 and a-SiO2, and ethylene glycol for temperatures from 265 to 300 K.