A good agreement is observed between the computed and literature values of refractive indices.doi:10.1016/S0925-3467(97)00171-7R.R ReddyY Nazeer AhammedK Rama GopalD.V RaghuramOptical MaterialsReddy R R,Ahammed Y N,Gopal K R,et al.Opti-cal Electronegativity and Refractive Index of Materi-...
The refractive indices of epoxy matrix materials increase monotonically with time during their chemical cure. The measured time dependence can be described by a simple model in which the concentrations of the reacting resin and hardener each decay exponentially in time with their own characteristic ...
摘要: Spectroreflectometry was used to measure the refractive index of the following optical coating materials: Ta(2)O(5), HfO(2), Y(2)0(3), La(2)O(3), ZrO(2), CeO(2), CeF(3), LaF(3), NdF(3), MgF(2) in the 250-2000-nm spectral range....
If the refractive indices of two materials are known for a given frequency, then one can compute the angle by which radiation of that frequency will be refracted as it moves from the first into the second material from Snell's law. If in a given region the values of refractive indices ...
From the beginning only the starting materials Ti and Ti(3)O(5) resulted in TiO(2) films with constant refractive indices. The first material produced a high, the latter a lower film index. Depending on the number of evaporations performed, both types of TiO(2) films can be obtained ...
A simple hand-held refractometer was used to measure the refractive index of 27 rigid gas permeable contact lens materials. As a general rule, lenses with refractive indices lower than 1.458 are made from fluorosilicone acrylates; lenses with refractive indices in the range of 1.458 to 1.469 are...
These two postulates make possible, the calculation of the refractive indices of polymers almost from first principles (7,8). Two useful relations for the molar refraction, /?, are provided here (1): The Lorentz-Lorentz equation (Bl) The Gladstone-Dale equation (B2) where p is the density...
A description is given of a refractometer on which refractive indices of solid materials have been measured from 0.4 micrometer to 12 micrometer. The computer controls the procedure of measurement and automatic measuring is achieved. Infrared light, visual light and grating monochromatic provide the ...
A simple method of measuring refractive indices of bulk materials using a prism coupling procedure is described. Refractive indices are determined from the measurement of the angle incident to the prism at which total reflection on the prism base breaks. This method is shown to possess the advantag...
Typical Substances, Reference Sample/Materials, and Approximate Refractive Indices Substance Refractive Index Vacuum 1.0000 Air 1.0002 Liquids at 20 °C, wave length of 589.3 nm 1-propanol 1.3848 2,4-Dichlorotoluene 1.5463 Acetone 1.3588 Aloe extract 1.334 Beer 1.346 Bromonaph...