On a method to employ Newton’s Rings concept to determine thickness of thin films

• Autorzy: Raveesha, K. H. , Doddamani, V. H. , Prasad, B. K.
• Języki publikacji: EN

Abstrakty

EN

Newton’s Rings experiment is traditionally utilized to find radius curvature of a lens. We propose a method in which this same set up can be used to find the thickness of thin films. The working principle is interference. It is based on the fact that, the formation of bright and dark interference fringes is a measure of the thickness of the air film at that point. We present the experimental data. The results from the experiment are in agreement with results obtained through geometry. Further, a method to improvise conventional interference at air wedge experiment which is generally used to determine the thickness of thin films is suggested.

Słowa kluczowe

EN

Interference; fringes; destructive interference; constructive interference; air wedle

• Czasopismo: International Letters of Chemistry, Physics and Astronomy
• Rocznik: 2014
• Tom: Vol. 3
• Strony: 1-7
• Opis fizyczny: Bibliogr. 15 poz., rys., wz.

Twórcy

autor

Raveesha, K. H.

• Deparment of Physics, CMR Institute of Technology, Bangalore, India,

autor

Doddamani, V. H.

• Department of Physics, Bangalore University, Bangalore, India,

autor

Prasad, B. K.

• Deparment of Physics, CMR Institute of Technology, Bangalore, India
• [e-mail]

Bibliografia

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• [6] Optics by Eugene Hecht, 4th edition, (2003). Addison & Wesley Publn.
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• [9] Zdzisław Pluta, Tadeusz Hryniewicz, International Letters of Chemistry, Physics and Astronomy 3 (2012) 1-10.
• [10] Zdzisław Pluta, Tadeusz Hryniewicz, International Letters of Chemistry, Physics and Astronomy 3 (2012) 11-23.
• [11] Zdzisław Pluta, Tadeusz Hryniewicz, International Letters of Chemistry, Physics and Astronomy 4 (2012) 1-7.
• [12] Nadir Fadhil Habubi, et al., International Letters of Chemistry, Physics and Astronomy 4 (2013) 1-8.
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• [15] Sujan Kumar Das, et al., International Letters of Chemistry, Physics and Astronomy 10(1) (2013) 90-101.