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P‐103: Polarizers with Continuously Variable Absorption Axis as Smart Windows
Author(s) -
Meng Cui Ling,
Tseng Man Chun,
Tang Shu Tuen,
Kwok Hoi Sing
Publication year - 2018
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.12287
Subject(s) - polarizer , materials science , dichroic glass , optics , optoelectronics , polarization (electrochemistry) , liquid crystal display , absorption (acoustics) , physics , chemistry , birefringence
We employed the technique of photoalignment to fabricate polarizers using dichroic dyes and liquid crystal polymers. By varying the polarization direction of the UV/blue light, polarizers with spatially varying absorption axis were made. Such polarizers have many applications. As an example, we showed how mechanical translation of two such polarizers can be used as a variable transmission smart window, in which no electric power is needed. In this work, a 5cm x 5cm window device was made and demonstrated with very good bright and dark states.