59‐1: <i>Invited Paper:</i> Metasurface‐integrated Polarimetric Sensors in Foundry‐Compatible Process

Metasurfaces offer optical engineers unprecedented control over the degrees of freedom of light. These single‐layer, lithographically defined structures can dictate light's flow, dependent on its incoming polarization, angle, or color. We report on the integration of a functional, polarization‐splitting metasurface layer on a near‐infrared (NIR) image sensor, demonstrating high‐quality snapshot polarimetric imaging for biometric applications, where polarization is used as a discriminating signal for spoof detection.