%0 Journal Article %A Khoshsima, Habib %A Javadzadeh, Mehrzad %T Experimental study of tunable layout printed Fresnel lens structure based on dye doped liquid crystal (DDLC) %J Accepted and Presented Articles of OPSI Conferences %V 23 %N 0 %U http://opsi.ir/article-1-1184-en.html %R %D 2017 %K Liquid crystal, Lens, Fresnel zone, Diffraction, Fresnel lens., %X Fresnel lenses based on liquid crystals, because of LC’s large birefringence & also tunable optical properties, have attracted considerable attention in photonics. Precise controlling of focal length in a lens, can be kind of remarkable tools in photonics. In this article, we introduce a layout printing way for producing Fresnel zone on 1294-1b liquid crystal doped with dye. With layout printing technique, we recorded 25 zones on cell with λ=532nm diode laser. After producing, DDLC Fresnel lens have 33 cm focal length at 0 V and 225 cm focal length at 20 V. %> http://opsi.ir/article-1-1184-en.pdf %P 377-380 %& 377 %! %9 Research %L A-10-1-1164 %+ %G eng %@ 1126-3278 %[ 2017