Combined laser ultrasonics, and Raman scattering in diamond anvil cell system operating in the transmission configuration

P. Zinin (1, 2) , K Burgess (1) , V. Prakapenka (3) , S Sharma (1) , I Kutuza (2) , Nikolay Chigarev (4) , Vitali Goussev (4)

1 HIGP - Hawaii Institute of Geophysics and Planetology
2 STC UI - Scientific and Technological Centre of Unique Instrumentation
3 CARS - Center for Advanced Radiation Sources [University of Chicago]
4 LAUM - Laboratoire d'Acoustique de l'Université du Mans

Recently it has been demonstrated that it is possible to detect both longitudinal and shear waves as well as measure their velocities for a non-transparent iron layer compressed in a diamond anvil cell (DAC) to pressures approaching 23 GPa by using laser ultrasonics (LU) technique. These experiments were conducted in the reflection configuration when point source and point receiver were located at the same side of the specimen. The purpose of the present study is to examine the generation and detection of the acoustical waves in the LU-DAC system operating in the transmission configuration. The experimental results obtained at 16.4 GPa presented in this article demonstrate that the LU-DAC technique can be applied for longitudinal wave velocity measurements in small specimens under high pressure in the transmission configuration.

Domaines: Sciences de l'ingénieur [physics]; Physique [physics]; Acoustique [physics.class-ph]

P. Zinin, K Burgess, V. Prakapenka, S Sharma, I Kutuza, et al.. Combined laser ultrasonics, and Raman scattering in diamond anvil cell system operating in the transmission configuration. AIRAPT 26, 26th International Conference on High Pressure Science and Technology, Aug 2017, Beijing, China. pp.042013, ⟨10.1088/1742-6596/950/4/042013⟩. ⟨hal-02536030⟩