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Updated: Oct 31, 2025
Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
Published on: April 14, 2020
Anisotropic Two-Photon Absorption and Second Harmonic Generation in Single Crystals of Silver(I) Coordination
Aswin Alexander1, Mayank Gupta1,2, Dileep Kottilil1
1Department of Physics, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
Abstract:
Metal complexes have been gaining attention in recent times over the traditional inorganic materials such as nonlinear optical materials. Here, we report both two-photon absorption (2PA) and second harmonic generation (SHG) from single crystals of two Ag(I) complexes with considerable optical anisotropy. We demonstrate that by controlling the incident light polarization, the tunability between these two nonlinear optical processes can be achieved. The deff values of the observed SHG from one complex are determined to be one order of magnitude greater than β-BBO crystals.
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