Dual-tier thin film polymer polarization imaging sensor

Area of Science:

• Optics and Photonics
• Sensor Technology
• Materials Science

Background:

• Traditional imaging captures only color and intensity, neglecting light polarization.
• Light polarization is a crucial optical property, yet it is ignored by conventional sensors and the human eye.
• There is a need for advanced imaging systems capable of detecting polarization information.

Purpose of the Study:

• To present a novel, low-power imaging sensor for real-time polarization detection.
• To integrate polymer polarization filters with a CMOS image sensor for Stokes parameter computation.
• To demonstrate a compact and efficient sensor for capturing previously unseen optical properties.

Main Methods:

• Development of a novel imaging sensor combining polymer polarization filters and a CMOS image sensor.
• Real-time computation of the first three Stokes parameters directly at the focal plane.
• Design of a 100 x 100 pixel imaging array with low power consumption.

Main Results:

• The developed sensor successfully records optical properties of partially linearly polarized light in real-time.
• The imaging array achieves a resolution of 100 x 100 pixels.
• The sensor demonstrates low power consumption of 48 mW at a frame rate of 30 fps.

Conclusions:

• The novel imaging sensor offers a low-power, real-time solution for capturing light polarization.
• This technology enables the acquisition of Stokes parameters, expanding imaging capabilities beyond traditional methods.
• The sensor has potential applications in fields requiring polarization-sensitive imaging.