Abstract

To obtain a wide range of high-precision time-delay controllable devices, a 100-µm-thick nematic liquid crystal (LC) cell was fabricated using the LC HTD028200-200. Factors influencing the delay calibration accuracy of LC variable retarders (LCVRs) were analyzed theoretically and experimentally. Subsequently, within the total voltage tuning range of 0–5 V, the LCVR had a delay of 4.977–97.404 fs, total delay range of 90 fs, tuning accuracy of ${{\pm 0.216}}\;{\rm{fs}}$, and tuning resolution of 0.128 fs. This device will play an important role in spectral imaging.

© 2020 Optical Society of America

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