☆ 4.4 Article

Liquid crystal on silicon-based real time phase stepping interferometry by spatial multiplexing

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION (2023)

Phase Compensation of the Non-Uniformity of the Liquid Crystal on Silicon Spatial Light Modulator at Pixel Level

Zhen Zeng et al.

Summary: Phase compensation is a critical step for optical measuring systems using spatial light modulators. This study proposes a method for calibrating and compensating the phase modulation characteristics of liquid crystal silicon spatial light modulators, to ensure the designed wavefront can be achieved. Experimental results demonstrate that this method can achieve precise phase compensation for generating freeform wave fronts with accurate optical performance.

SENSORS (2021)

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Article Optics

Generalized and multiplexed q-plates emulated via an LCoS-based device

M. A. Vergara et al.

Summary: In this paper, an experimental device based on a liquid crystal on silicon display is implemented to emulate generalized q-plates. The feasibility of this method is proven by testing q-plates defined by linear and nonlinear functions and studying their effects on polarized beams. An application is proposed to create arbitrary superpositions of vector and vortex beams using multiplexed q-plates, with good agreement between theoretical and experimental results.

JOURNAL OF OPTICS (2021)

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Article Optics