Proceedings of the International Display Workshops Volume 32 (IDW '25)

Proceedings of the International Display Workshops Volume 32 (IDW '25)

Dec 2 - Dec 5, 2025International Convention Center Hiroshima
The International Display Workshops
Proceedings of the International Display Workshops Volume 32 (IDW '25)

Proceedings of the International Display Workshops Volume 32 (IDW '25)

Dec 2 - Dec 5, 2025International Convention Center Hiroshima

[LCT5-1(Invited)]All–Optical Diffractive Deep Neural Networks Enabled by Liquid Crystal

Liu Liu2,1, Quanzhou Long1, Fion Sze Yan Yeung2, Man Chun Tseng2, *Wanlong Zhang1(1. Shenzhen University (China), 2. Hong Kong University of Science and Technology (Hong Kong))
https://doi.org/10.36463/idw.2025.0068

Keywords:

Liquid Crystal,Optical Neural Network,Photo-induced Alignment

In this paper, we introduce a novel approach utilizing a 5–layer all–optical D2NN constructed with photo–induced liquid crystal alignment technology to create LC–based tunable phase retarders, experimentally achieving a classification accuracy of 89% with 500 random hand-written digits from the test MNIST dataset.