Jump to main content
Jump to site search

Issue 6, 2019
Previous Article Next Article

Hyperspectral mapping of anisotropy

Author affiliations

Abstract

Anisotropy of absorbance (dichroism) and birefringence limits spatial resolution, sensitivity during quantitative detection of trace analytes, as well as spectral imaging in the near-IR and mid-IR spectral ranges. Here we show hyperspectral imaging capable of determining retardance and absorbance due to small changes in the real and imaginary parts of the refractive index ∼Δn and ∼Δκ at each single point of a measurement at diffraction limited resolution. This single-beam technique allows the retrieval of the phase and amplitude information by virtue of a twice different angular dependence of Δn and Δκ on the sample orientation angle. It has potential applications in analytical science, multi-dimensional optical memory devices, and forensic/defense/sensor fields.

Graphical abstract: Hyperspectral mapping of anisotropy

Back to tab navigation

Supplementary files

Publication details

The article was received on 22 May 2019, accepted on 23 Jul 2019 and first published on 23 Jul 2019


Article type: Communication
DOI: 10.1039/C9NH00340A
Nanoscale Horiz., 2019,4, 1443-1449

  •   Request permissions

    Hyperspectral mapping of anisotropy

    M. Ryu, R. Honda, A. Balčytis, J. Vongsvivut, M. J. Tobin, S. Juodkazis and J. Morikawa, Nanoscale Horiz., 2019, 4, 1443
    DOI: 10.1039/C9NH00340A

Search articles by author

Spotlight

Advertisements