title: Optical modulation of waveguiding in spiropyran-functionalized polydiacetylene microtube.
abstract: Optical modulation of waveguiding and logic operations play significant roles in highly integrated optical communication components, optical computing, and photonic circuits. Herein, we designed and synthesized spiropyran-functionalized polydiacetylene (SFPDA) microtubes, and realized reversible optical modulation of waveguiding in SFPDA microtubes through fluorescence resonance energy transfer (FRET) between the PDA matrix and spiropyran in open merocyanine (MC) form within the surface of the microtubes. Because of the reversible isomerization characteristics of spiropyran units, we have realized resettable, multireadout logic system that includes OR and INHIBIT logic operations in SFPDA microtube.
authors.affiliation: CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Key Laboratory of Optoelectronic Science and Technology in Anhui Province, and §Department of Optics and Optical Engineering, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China.
authors.forename: Hongyan
authors.initials: H
authors.lastname: Xia
authors.forename: Yikai
authors.initials: Y
authors.lastname: Chen
authors.forename: Guang
authors.initials: G
authors.lastname: Yang
authors.forename: Gang
authors.initials: G
authors.lastname: Zou
authors.forename: Qijin
authors.initials: Q
authors.lastname: Zhang
authors.forename: Douguo
authors.initials: D
authors.lastname: Zhang
authors.forename: Pei
authors.initials: P
authors.lastname: Wang
authors.forename: Hai
authors.initials: H
authors.lastname: Ming
keywords: logic gate operation; optical modulation; polydiacetylene microtube; spiropyran; waveguide