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Maximizing Young's fringe visibility under unitary transformations for mean-square coherent light
R Martínez-Herrero1, P M Mejias
1Universidad Complutense de Madrid, 28040-Madrid, Spain.
Optics Express
|January 23, 2009
Summary
This study determines maximum visibility in a Young interferometer using mean-square light. It provides analytical expressions for field vectors and cross-spectral density, comparing random electromagnetic fields.
Area of Science:
- Optics and Photonics
- Electromagnetism
- Statistical Optics
Background:
- Young's interferometer is a fundamental tool for studying light interference.
- Understanding the polarization and coherence of light sources is crucial for optical experiments.
- Mean-square light and random electromagnetic fields are important models in coherence theory.
Purpose of the Study:
- To determine the maximum attainable visibility in a Young interferometer for mean-square light.
- To derive analytical expressions for the field vector and cross-spectral density matrix of such beams.
- To provide a comparative analysis of different types of random electromagnetic fields.
Main Methods:
- Utilizing the degree of polarization at the pinholes of a Young interferometer.
- Applying unitary transformations to optimize visibility.
- Deriving analytical expressions for electromagnetic field properties.
Main Results:
- The maximum attainable visibility for mean-square light in a Young interferometer is determined.
- Analytical expressions for the field vector (mean-square sense) and cross-spectral density matrix are obtained.
- A comparative summary of characteristics for common random electromagnetic fields is presented.
Conclusions:
- The study provides key insights into the behavior of partially polarized light in interferometric setups.
- The derived expressions are valuable for characterizing and manipulating random electromagnetic beams.
- This work contributes to a deeper understanding of coherence and polarization in optical fields.
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