Infrared polariscopy imaging of linear polymeric patterns with a focal plane array

Honda, Reo, Ryu, Meguya, Moritake, Masayuki, Balčytis, Armandas, Mizeikis, Vygantas, Vongsvivut, Jitraporn, Tobin, Mark J., Appadoo, Dominique, Li, Jing-Liang, Ng, Soon Hock, Juodkazis, Saulius and Morikawa, Junko 2019, Infrared polariscopy imaging of linear polymeric patterns with a focal plane array, Nanomaterials, vol. 9, no. 5, doi: 10.3390/nano9050732.

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Title Infrared polariscopy imaging of linear polymeric patterns with a focal plane array
Author(s) Honda, Reo
Ryu, Meguya
Moritake, Masayuki
Balčytis, Armandas
Mizeikis, Vygantas
Vongsvivut, Jitraporn
Tobin, Mark J.
Appadoo, Dominique
Li, Jing-LiangORCID iD for Li, Jing-Liang
Ng, Soon Hock
Juodkazis, Saulius
Morikawa, Junko
Journal name Nanomaterials
Volume number 9
Issue number 5
Article ID 732
Total pages 13
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2019-05-13
ISSN 2079-4991
Summary © 2019 by the authors. Licensee MDPI, Basel, Switzerland. Polariscopy is demonstrated using hyperspectral imaging with a focal plane array (FPA) detector in the infrared (IR) spectral region under illumination by thermal and synchrotron light sources. FPA Fourier-transform IR (FTIR) imaging microspectroscopy is useful for monitoring real time changes at specific absorption bands when combined with a high brightness synchrotron source. In this study, several types of samples with unique structural motifs were selected and used for assessing the capability of polariscopy under this FPA-FTIR imaging technique. It was shown that the time required for polariscopy at IR wavelengths can be substantially reduced by the FPA-FTIR imaging approach. By using natural and laser fabricated polymers with sub-wavelength features, alignment of absorbing molecular dipoles and higher order patterns (laser fabricated structures) were revealed. Spectral polariscopy at the absorption peaks can reveal the orientation of sub-wavelength patterns (even when they are not spatially resolved) or the orientation of the absorbing dipoles.
Language eng
DOI 10.3390/nano9050732
Indigenous content off
Field of Research 091209 Polymers and Plastics
100708 Nanomaterials
020503 Nonlinear Optics and Spectroscopy
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2019, The Authors
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