This work is licensed under a
Creative Commons Attribution 4.0 International License
Ajoy Ghatak, 1991, Optics , Tata Mcgraw Hill publication, 3rd Edition, 13. 16.
Chattopadhyay, 2002, An advanced course in Practical Physics, Central Publication, 6th Edition, 227 ( Received 17 February 2015; accepted 24 February 2015 ).
 B. Tlili, C. Nouveau, G. Guillemot, A. Besnard, A. Barkaoui, "Investigation of the Effect of Residual Stress Gradient on the Wear Behavior of PVD Thin Films", Journal of Materials Engineering and Performance, Vol. 27, p. 457, 2018DOI: https://doi.org/10.1007/s11665-018-3132-1
 I. Abd El-Sadek, W. Ramadan, M. Nawareg, A. El-Tawargy, "Variable wavelength Newton’s rings formed in transmission for measuring radius of curvature and sub-micrometric thin film thickness", Indian Journal of Physics, 2019DOI: https://doi.org/10.1007/s12648-019-01570-z