Maximizing Young fringe visibility with a universal SU2 polarization gadget

Area of Science:

• Quantum optics
• Interferometry
• Electromagnetism

Background:

• Young's interferometer is sensitive to the coherence and polarization of light.
• Anisotropic optical elements can alter fringe visibility.
• Theoretical predictions exist for maximum fringe visibility but lack experimental verification.

Purpose of the Study:

• To experimentally test the theoretical predictions of maximum fringe visibility in a Young interferometer.
• To investigate the effect of anisotropic optical elements on fringe visibility with general electromagnetic fields.
• To demonstrate the utility of a universal polarization gadget in achieving maximum fringe visibility.

Main Methods:

• Utilizing a Young interferometer setup.
• Inserting a three-component universal SU2 polarization gadget.
• Employing general electromagnetic fields with arbitrary coherence features.
• Measuring fringe visibility under different conditions.

Main Results:

• Maximum fringe visibility was achieved using the SU2 polarization gadget.
• Experimental results confirmed theoretical predictions for fringe visibility.
• The setup demonstrated robustness for arbitrary coherence features of the illuminating field.

Conclusions:

• The experimental verification of maximum fringe visibility is now established.
• Universal polarization gadgets are effective in controlling fringe visibility in interferometers.
• This work bridges the gap between theoretical predictions and experimental validation in optical coherence studies.