Measurement of the optical constants of Al above the melting point at λ=10.6 μm
- 1 July 1984
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 56 (1), 238-240
- https://doi.org/10.1063/1.333760
Abstract
The index of refraction, the extinction coefficient, and the absorptance of pure aluminum of technical quality were experimentally determined as a function of temperature for the CO2-laser wavelength. For the measurements, an ellipsometric setup was used. The absorptance jumps from 5% to 38% discontinuously at the melting point, where this result is weakly dependent on the laser power.Keywords
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