Field-induced lattice distortion in blue phase liquid crystal by the heating effect
Po-Chang Chen1*, Duan-Yi Guo1, Chun-Wei Chen2, Cheng-Chang Li1, Hung-Chang Jau1, Keng-Hsien Lin1, Ting-Mao Feng1, Chun-Ta Wang1, Timothy J Bunning3, Iam Choon Khoo2, Tsung- Hsien Lin1
1Department of Photonics, National Sun Yat-sen University, Kaohsiung, Taiwan
2Department of Electrical Engineering, Pennsylvania State University, Pennsylvania, USA
3Materials and Manufacturing Directorate, Air Force Research Laboratory, Ohio, USA
* Presenter:Po-Chang Chen,
Blue phase liquid crystals have the characteristics of self-assembly at a certain temperature range and tuning by electric fields. So We applying a continuous field to the blue phase will generate a large heat accumulation, which will concentrate the BP lattice and make the non-cubic lattice unstable. We proposed to RAF technology can be used between field and field that has enough time to dissipate the heating, making the stable stretched non-cubic lattice. Make BPLC will be more advantageous in photonic crystal applications.

Keywords: Electrostriction, lattice distortion, dielectric heating