Focusing through scattering media by a single polarization transmission matrix with binary polarization modulation

Area of Science:

• Optics and Photonics
• Light Scattering
• Wavefront Shaping

Background:

• Optical focusing is significantly degraded by wavefront distortion from scattering media.
• Wavefront shaping using transmission matrices (TM) is a key technique for controlling light propagation through highly scattering media.
• Conventional TM methods primarily analyze light's amplitude and phase, often neglecting polarization effects inherent in stochastic light propagation.

Purpose of the Study:

• To address the limitations of traditional transmission matrix methods in scattering media.
• To investigate and incorporate the impact of polarization on light propagation through scattering media.
• To develop a novel approach for achieving precise optical focusing by considering polarization characteristics.

Main Methods:

• Proposed a single polarization transmission matrix (SPTM) approach.
• Utilized binary polarization modulation as the basis for the SPTM.
• Experimental demonstration of single-spot focusing through scattering media using the SPTM.

Main Results:

• Successfully achieved single-spot optical focusing through highly scattering media.
• The SPTM effectively accounts for polarization changes during light propagation.
• Demonstrated the efficacy of binary polarization modulation in wavefront shaping.

Conclusions:

• The single polarization transmission matrix (SPTM) offers a robust method for optical focusing in scattering environments.
• SPTM overcomes limitations of traditional TM by incorporating polarization dynamics.
• Anticipate widespread adoption of SPTM in advanced wavefront shaping applications.