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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Computational polarization imaging from a single speckle image.

Julien Fade¹, Muriel Roche, Mehdi Alouini

¹Institut de Physique de Rennes, Université de Rennes 1, CNRS, Rennes, France. julien.fade@univ-rennes1.fr

|February 3, 2012

Summary

This summary is machine-generated.

This study introduces a new computational imaging method to measure the degree of polarization (DOP) from a single image. This technique accurately estimates DOP, even for birefringent samples, offering a simpler alternative to existing polarimetric methods.

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Area of Science:

Optical Imaging
Computational Photography
Polarimetry

Background:

Measuring the degree of polarization (DOP) is crucial for various optical applications.
Existing polarimetric imaging techniques can be complex and may not perform well on all sample types.

Purpose of the Study:

To demonstrate a novel computational method for imaging the degree of polarization (DOP) from a single intensity image.
To validate the accuracy and applicability of this method across different experimental samples.

Main Methods:

Acquisition of a single intensity image under coherent illumination.
Analysis of speckle characteristics within statistically homogeneous pixel neighborhoods.
A simple calibration step for quantitative DOP estimation.

Main Results:

Successful experimental demonstration of DOP imaging from a single intensity image.
Accurate DOP estimation with precision matching theoretical predictions across various samples.
The method's validity on birefringent samples, outperforming linear polarimetric contrast imaging.

Conclusions:

A single-intensity-image-based computational technique enables effective DOP imaging.
This method offers a simple, fast, and accurate approach for DOP measurement, applicable to birefringent materials.
The technique provides a valuable alternative to traditional polarimetric imaging methods.