TY  - EJOUR
AU  - Tebbe, David
AU  - Schütte, Marc
AU  - Kundu, Baisali
AU  - Beschoten, Bernd
AU  - Sahoo, Prasana K.
AU  - Waldecker, Lutz
TI  - Hyperspectral photoluminescence and reflectance microscopy of 2D materials
PB  - arXiv
M1  - FZJ-2024-03163
PY  - 2023
AB  - 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.
KW  - Optics (physics.optics) (Other)
KW  - Materials Science (cond-mat.mtrl-sci) (Other)
KW  - FOS: Physical sciences (Other)
LB  - PUB:(DE-HGF)25
DO  - DOI:10.48550/ARXIV.2305.06945
UR  - https://juser.fz-juelich.de/record/1025800
ER  -