Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Refractive indices of powdered materials using attenuated total reflectance spectroscopy

Not Accessible

Your library or personal account may give you access

Abstract

The attenuated total reflectance spectroscopy method of determining the complex refractive indices of materials which occur only as small particles was applied at a 10.6-μm wavelength to numerous pressed powder samples. Fresnel relations were used to obtain best fit values for the complex refractive indices of the samples. Good fits were obtained only when the particles were small compared to the wavelength. For such samples, several effective medium theories were used to predict values of bulk material refractive indices from those of samples with different volume packing fractions. Only the Bruggeman theory produced consistent results.

© 1989 Optical Society of America

Full Article  |  PDF Article
More Like This
Attenuated total reflectance measurements of the complex refractive index of kaolinite powder at CO2 laser wavelengths

R. G. Pinnick, S. G. Jennings, Daniel C. Boice, and John P. Cruncleton
Appl. Opt. 24(19) 3274-3285 (1985)

Attenuated total reflection method for obtaining the optical constants of powders

Ian R. Chandler, Vincent P. Tomaselli, and K. D. Moller
Appl. Opt. 22(24) 4099-4104 (1983)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (13)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved