Abstract
Background: The optical constants of a glass material are very useful for determining its radiative properties, as well as for selecting the appropriate thin-film coatings on a glass substrate. Objective: The objective of this study is to calculate the real part (n) and the imaginary part (k) of the complex refractive index of a clear glass material using a simple method based on the reflectivity and transmissivity measurements. Methods: In this study, the parts n and k are derived from the equations of the reflectivity at near zero incidence and transmissivity at normal incidence by using Shimadzu IR-70 Spectrophotometer and Cary 5E Spectrophotometer apparatuses. Results: Current and future developments of the patents on Optical Constant of a Clear Glass Material are finally provided to calculate the real and imaginary parts of a clear glass material in the ultraviolet through the near infrared range based on reflectivity and transmissivity measurements at near zero and normal incidence, respectively. Conclusions: The real and the imaginary parts of the complex refractive index of the glass sample obtained in the present study are in very good agreement with Rubin’s data. Although, a direct comparison between different samples is not possible, due to the difference in manufacturing process and material composition.
Original language | English |
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Pages (from-to) | 330-336 |
Number of pages | 7 |
Journal | Recent Patents on Mechanical Engineering |
Volume | 9 |
Issue number | 4 |
DOIs | |
Publication status | Published - Nov 1 2016 |
Externally published | Yes |
Keywords
- Complex refractive index
- Glass material
- Imaginary part
- Optical constants
- Real part
- Spectrophotometer
ASJC Scopus subject areas
- Mechanical Engineering