PHD STUDENT ZHENGNAN YUAN (Sonia) RECEIVED JSID'S OUTSTANDING STUDENT PAPER AWARD AND JSID COVER OF 2022
The research paper "Microsecond High-Contrast Continuous 2.25 Phase Modulation Based on Non-linear Kerr Effect of VADHFLC" (Zheng-Nan Yuan, Zhi-Bo Sun, Xin-Yi Yu, Ming Cheng, Yue-chu Cheng, An-ran Li, Valerii Vashchenko, Hoi-Sing Kwok, Abhishek K. Srivastava), supervised by Prof. Abhishek Srivastava, received the Distinguished Student Paper Award of SID, Display week 2022. The paper is also promoted as the journal cover by the Journal of Society for Information Display, Volume 30, Issue 5, 404–412. https://doi.org/10.1002/jsid.1123
Here we disclose a fast (ON time ∼50 μs and OFF time ∼25 μs at 55 °C), high-contrast, continuous phase modulator without fringe field effect (FFE). The phase modulator uses the Kerr effect of vertically aligned deformed helix ferroelectric liquid crystals (VADHFLCs). Specifically, FFE is a long-term problem for nematic liquid crystals (NLCs). In this article, we are disclosing, for the first-time found, that no FFE exists for VADHFLCs, even for phase modulators with 1-μm pixel pitch. It is an attractive feature for ultra-high-resolution display and photonic applications. Moreover, the Kerr constant is 88 nm/V2, and the contrast ratio is larger than 1000:1. It is a promising candidate for high-PPI augmented reality (AR)/virtual reality (VR) displays, wavelength selective switch (WSS), hologram, adaptive optics, and LiDARs.
Display Week is the top annual conference of the industry organized by the Society for Information Display. In 2022, the conference was held at San Jose McEnery Convention Center, San Jose, US, from May 10-13, 2022.
Fig. 1. Cover of JSID (Volume 30 issue 5 May 2022)
Fig. 2. Photo of the authors for Distinguished Paper Award SID 2022