specular reflectance (reflection factor), \(\rho\)

in optical spectroscopy
https://doi.org/10.1351/goldbook.S05851
@[email protected] specularly reflected from the surface of a system, \(P_{\mathrm{refl}}\), divided by the incident @[email protected], \(P_{0}\): \[\rho =\frac{P_{\mathrm{refl}}}{P_{0}}\]
Source:
PAC, 1985, 57, 105. (Names, symbols, definitions and units of quantities in optical spectroscopy (Recommendations 1984)) on page 115 [Terms] [Paper]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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