Material Database

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<?xml version="1.0" encoding="utf-8"?>
<!-- derived from data found on http://www.octonus.com/oct/projects/adsorbtion_spectra.phtml -->
<scenedata>
	<medium>
		<name>Sapphire_medium</name>
		<precedence>10</precedence>
		<basic>
			<ior>1.765</ior>
			<cauchy_b_coeff>0.01375252357359</cauchy_b_coeff>
			<absorption_coefficient_spectrum>
				<regular_tabulated>
					<start_wavelength>0.38E-06</start_wavelength>
					<end_wavelength>0.76E-06</end_wavelength>
					<num_values>20</num_values>
					<values>
						1020 280 110 270 400 220 310 490 650 770 820 840 840 860 900 970 1070 1190 1190 1190
					</values>
				</regular_tabulated>
			</absorption_coefficient_spectrum>
		</basic>
	</medium>
	<material>
		<name>Sapphire</name>
		<specular>
			<transparent>true</transparent>
			<internal_medium_name>Sapphire_medium</internal_medium_name>
		</specular>
	</material>
</scenedata>

-->