Laser Micro-Printing of Dye-Molecules on Polymeric Surfaces

作     者：Wesley Sims Aschalew Kassu Carlton Farley Anup Sharma Wesley Sims;Aschalew Kassu;Carlton Farley;Anup Sharma

作者机构：Department of Physics Chemistry and Mathematics Alabama A&M University Normal AL USA Department of Mechanical Engineering Civil Engineering and Construction Management Alabama A&M University Normal AL USA 

出 版 物：《Open Journal of Applied Sciences》 (应用科学（英文）)

年 卷 期：2016年第6卷第7期

页      面：416-421页

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

主　　题：Laser Micro-Printing Laser Immobilization of Molecules Micro-Patterning Reticle 

摘      要：We describe a technique for micro-patterning and immobilization of dyes on polymer substrates using a low-power visible laser for dye-excitation. Deposits from an aqueous medium containing the dye can be attached at any desired spot on the substrate simply by exposing the area to laser light. The area of the laser beam can control the spot-size of immobilized dye, in the range of 10 - 100 microns. The immobilization technique is characterized by micro-printing numerals, alphabets and patterns on polybutadiene substrates with Rhodamine (Rh6G) dye. Adsorption of laser-excited dye molecules within the polymer appears to be the mechanism for laser-printing technique.