Determination of Kerr and two-photon absorption coefficients of ABI thin films
Date
2018
Authors
Bundulis, Arturs
Nitiss, Edgars
Rutkis, Martins
Journal Title
Journal ISSN
Volume Title
Publisher
SPIE
Abstract
In this paper we report the results of studied nonlinear optical properties of DMABI-Ph6 in form of solutions with chloroform as solvent and guest-host thin films with poly(methyl methacrylate) as host material. We implemented the Zscan method for studies of Kerr and two-photon absorption of selected material. During experimental measurements we used 1064 nm Nd:YAG laser with 30 ps pulse duration and 10 Hz repetition rate. From acquired values of Kerr coefficients we calculated values for real part of third-order susceptibility, as well as second-order hyperpolarizability. Acquired data for DMABI-Ph6 were compared with data for other ABI derivatives studied previously to describe how different donor and acceptor groups influence third-order nonlinear optical properties.
Description
This material is based upon work supported by the ERDF 1.1.1.1 activity project Nr. 1.1.1.1/16/A/046 “Application assessment of novel organic materials by prototyping of photonic devices”
Keywords
Research Subject Categories::NATURAL SCIENCES:Physics , Kerr effect , Nonlinear optics , Organic materials , Thin films , Two-photon absorption , Z-scan