%0 Electronic Article
%A Tebbe, David
%A Schütte, Marc
%A Kundu, Baisali
%A Beschoten, Bernd
%A Sahoo, Prasana K.
%A Waldecker, Lutz
%T Hyperspectral photoluminescence and reflectance microscopy of 2D materials
%I arXiv
%M FZJ-2024-03163
%D 2023
%X Optical micro-spectroscopy is an invaluable tool for studying and characterizing samples ranging from classical semiconductors to low-dimensional materials and heterostructures. To date, most implementations are based on point-scanning techniques, which are flexible and reliable, but slow. Here, we describe a setup for highly parallel acquisition of hyperspectral reflection and photoluminescence microscope images using a push-broom technique. Spatial as well as spectral distortions are characterized and their digital corrections are presented. We demonstrate close-to diffraction-limited spatial imaging performance and a spectral resolution limited by the spectrograph. The capabilities of the setup are demonstrated by recording a hyperspectral photoluminescence map of a CVD-grown MoSe$_2$-WSe$_2$ lateral heterostructure, from which we extract the luminescence energies, intensities and peak widths across the interface.
%K Optics (physics.optics) (Other)
%K Materials Science (cond-mat.mtrl-sci) (Other)
%K FOS: Physical sciences (Other)
%F PUB:(DE-HGF)25
%9 Preprint
%R 10.48550/ARXIV.2305.06945
%U https://juser.fz-juelich.de/record/1025800