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Updated: Jul 17, 2025
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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
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Image encryption using binary polarization states of light beam.
Allarakha Shikder1, Naveen K Nishchal2
1Department of Physics, Indian Institute of Technology Patna, Bihta, Patna, 801106, India.
Scientific Reports
|August 28, 2023
Summary
This study presents a novel color image encryption method using binary polarization states, simplifying optical implementation. The technique enables single-shot intensity recording, overcoming limitations of phase and polarization encoding for practical applications.
Area of Science:
- Optics and Photonics
- Information Security
- Image Processing
Background:
- Traditional optical encryption relies on manipulating light's amplitude, phase, or polarization.
- Phase and polarization encoding methods present practical implementation challenges due to complex setups and measurement requirements.
Purpose of the Study:
- To propose and demonstrate a simplified optical image encryption technique.
- To develop a method for color image encryption using binary polarization states and single-shot intensity recording.
Main Methods:
- Encoding information in binary polarization states.
- Utilizing single-shot intensity recording for data capture.
- Demonstrating the technique with both coherent and partially coherent light sources.
Main Results:
- Successfully implemented color image encryption without requiring Stokes parameter calculations.
- Showcased the feasibility of the method with coherent and partially coherent light.
- Partially coherent light sources effectively mitigated speckle issues.
Conclusions:
- The proposed method offers a practical and cost-effective approach to optical image encryption.
- Binary polarization encoding simplifies optical implementation compared to traditional methods.
- The use of partially coherent light enhances the robustness and applicability of the encryption technique.
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