Volume 25 - ICOP & ICPET 2019                   ICOP & ICPET 2019, 25 - ICOP & ICPET 2019: 1077-1080 | Back to browse issues page

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Ajami A, Husinsky W. Micro-nano 3D structuring based on two-photon photopolymerization. ICOP & ICPET. 2019; 25 :1077-1080
URL: http://opsi.ir/article-1-1705-en.html
1- Faculty of Physics, Semnan University, Semnan, Iran
2- Institute of Applied Physics, Vienna University of Technology, Vienna, Austria
Abstract:   (745 Views)
Based on linear absorption photopolymerization it is not possible to create 3D microstructure with resolution below the diffraction limit which depends on the wavelength of the laser beam used for photopolymerization as well as the optics used for focusing the laser beam. Using high intense laser beam with wavelength beyond the linear absorption spectrum it is possible to create structures based on two-photon photopolymerization (2PP) with resolutions below the diffraction limit. In this work we determined the two-photon absorption (2PA) cross section of a two-photon initiator (2PI) using an open-aperture Z-scan. Then we utilized the examined 2PI for creating 3D microstructures based on 2PP. The realized structures illustrate the resolution of a few 100 nm which is well below the diffraction limit of the setup used for the structuring.   
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Type of Study: Research | Subject: Special

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