Achieving Efficient Self-Driven Full-Stokes Photodetection in Optically Active Ferroelectric.

Area of Science:

• Materials Science
• Optoelectronics
• Solid-State Physics

Background:

• Full-Stokes polarization detection is vital for applications like target identification and 3D reconstruction.
• Simultaneous detection of multiple polarization states in compact devices presents a significant challenge.

Purpose of the Study:

• To report a novel optically active ferroelectric material for self-driven full-Stokes polarization detection.
• To demonstrate the material's capability for simultaneous linear and circular polarization detection without external bias.

Main Methods:

• Synthesis and characterization of the optically active ferroelectric OA2EA2Pb3Br10 (1).
• Utilizing the bulk photovoltaic effect for self-driven photodetection.
• In-plane photodetection configuration to measure polarization parameters.

Main Results:

• The material enables self-driven full-Stokes polarization detection.
• Achieved high linear polarization ratio (2.7) and circular polarization anisotropy factor (0.46).
• Low average measurement errors (3.2%-5.3%) for Stokes parameters were obtained.

Conclusions:

• This study introduces a new paradigm for designing ferroelectric materials for self-driven, filterless full-Stokes polarization detection.
• The developed material offers a compact and efficient solution for polarization sensing applications.