How to Calculate Radius of Curvature from Thin Film Interference?

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SUMMARY

The discussion focuses on calculating the radius of curvature from thin film interference patterns, specifically fringes of equal inclination. Participants inquire about methods to determine the maximum radius of curvature at which interference is observable. The mention of Newton's rings indicates a connection to classical optics principles, which are crucial for understanding the interference phenomena in curved thin films.

PREREQUISITES
  • Understanding of thin film interference principles
  • Familiarity with optical phenomena such as Newton's rings
  • Basic knowledge of curvature in optics
  • Ability to interpret interference patterns
NEXT STEPS
  • Research the mathematical formulas for calculating radius of curvature in thin films
  • Study the principles of Newton's rings and their application in measuring curvature
  • Explore advanced optical interference techniques
  • Learn about the impact of film thickness on interference patterns
USEFUL FOR

Optics students, physicists, and engineers working with thin films and interference patterns will benefit from this discussion.

Emily_Khan
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Hello, I have a question about interference.

I have interference from thin film, i.e. fringes of equal inclination. How I can calculate the radius of sample curvature from the interference pattern? How I can to determine the maximum radius of curvature of the surface at which interference will be observed?
 
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Emily_Khan said:
Hello, I have a question about interference.

I have interference from thin film, i.e. fringes of equal inclination. How I can calculate the radius of sample curvature from the interference pattern? How I can to determine the maximum radius of curvature of the surface at which interference will be observed?
Welcome to the PF, Emily. :smile:

Are you saying your thin film is curved? Is it curved in 1 dimension or two? Can you post a picture or a diagram to clarify your question? Thanks.
 
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