Optical modeling of single and multilayer two-dimensional materials and heterostructures

Majérus, Bruno; Henrard, Luc; Kockaert, Pascal

doi:10.1103/physrevb.107.045429

Cited by 4 publications

(2 citation statements)

References 28 publications

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“…25 Moreover, since free-standing films are not always available or the supporting substrate is often an integral part of the device, it is necessary to develop the analysis of supported thin films, taking into account the influence of the substrate. 11,12,26 Often 2D materials are available in the form of platelets deposited on a transparent substrate, with sizes starting from a few tens of square microns. It is thus evident that a pump with a spatial resolution of the order of the micron is needed to measure these samples and investigate the variation of the optical properties at the edges.…”

Section: ■ Introductionmentioning

confidence: 99%

“…In fact, since transmission, reflection, and scattering simultaneously contribute to the measured differential spectra, there are ambiguities in assigning the origin of spectral signatures if only one quantity is measured, ruling out the quantitative interpretation of the spectra . Moreover, since free-standing films are not always available or the supporting substrate is often an integral part of the device, it is necessary to develop the analysis of supported thin films, taking into account the influence of the substrate. ,, …”

Section: Introductionmentioning

confidence: 99%

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Optical Time-Resolved Microscopy on Few-Atoms-Thick Materials

Mermoul,

Ruzankina,

Giannetti

et al. 2024

J. Phys. Chem. C

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In the past decade, the emergence of ultrathin 2D films consisting of only a few atomic layers deposited on various substrates sparked new ideas and research. This Perspective provides a nonexhaustive review of utilizing ultrafast optical pump−probe microscopy and the models for fitting experimental data that emerged in the past few years. We will focus on retrieving optically induced modifications of material parameters from pump−probe data on 2D materials, involving the inversion of Maxwell's equations and discussing new methods to localize optical interactions to capture the response of 2D films with increased resolution and sensitivity. These areas represent promising avenues for advancing our understanding of the dynamic behavior of ultrathin 2D films and their response to ultrafast optically induced transients.

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