The complex optical refractive index contains the optical constants, n(?)and k(?), which correspond to the dispersion and absorption of light within a medium, respectively. By obtaining the optical constants one can in principle model most optical phenomena in media and at interfaces including reflection, refraction and dispersion. We have developed improved protocols based on the use of multiple path lengths to determine the optical constants for dozens of liquids, including organic and organophosphorous compounds. Detailed description of the protocols to determine the infrared indices will be presented, along with preliminary results using the constants with their applications to optical modeling.
Revised: May 22, 2017 |
Published: May 3, 2017
Citation
Tonkyn R.G., T.O. Danby, J.C. Birnbaum, M.S. Taubman, B.E. Bernacki, T.J. Johnson, and T.L. Myers. 2017.Measurement of infrared refractive indices of organic and organophosphorous compounds for optical modeling. In Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVIII, April 9, 2017, Anaheim, California. Proceedings of the SPIE, edited by AW Fountain and JA Guicheteau, 10183, Article No. 1018306. Bellingham, Washington:SPIE.PNNL-SA-124964.doi:10.1117/12.2264384