Ellipsometric study of the prewetting transition at the mercury-sapphire interface

摘要

Optical reflectivity measurements were carried out on fluid mercury against an optically transparent sapphire window at high temperatures and pressures up to 1550 degrees C and 180 MPa. In order to make quantitative analyses, we performed not only normal-reflection measurements but also ellipsometric measurements with 45 degrees-reflection geometry, and the occurrence of the prewetting transition was confirmed clearly. [References: 3]