ArticleLight, science & applications2021
Ultrafast transient sub-bandgap absorption of monolayer MoS
Article in Light, science & applications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Spontaneous Polarization Suppression of Exciton-Exciton Annihilation in Rhombohedral-Stacked Bilayer Molybdenum Disulfide.ACS nano · 2026Article
- Mitigating Recombination Losses in CZTSSe Solar Cells via Interface Engineering: A Comprehensive Review.Molecules (Basel, Switzerland) · 2026Review
- Integrated van der Waals waveguides for all-optical nonlinear photonic circuits.Nature communications · 2026Article
- Hybrid-2D Excitonic Metasurfaces for Complex Amplitude Modulation.Nano letters · 2026Article
- Electrically tunable strong coupling in a hybrid-2D excitonic metasurface for optical modulation.Light, science & applications · 2026Article
- Electrostatically enhanced infrared absorption in two-dimensional van der Waals structures.Nanoscale advances · 2025Article
- Advanced Progress of Non-Stoichiometric Transition Metal Sulfides for Sensing, Catalysis, and Energy Storage.Nanomaterials (Basel, Switzerland) · 2025Review
- Programmable nonlinear optical neuromorphic computing with bare 2D material MoSNature communications · 2024Article
- Swept coded aperture real-time femtophotography.Nature communications · 2024Article
- Defect engineered magnetism induction and electronic structure modulation in monolayer MoSHeliyon · 2024Article
- Ultrafast optical properties and applications of anisotropic 2D materials.Nanophotonics (Berlin, Germany) · 2024Article
- Multifield-Controlled Terahertz Hybrid Metasurface for Switches and Logic Operations.Nanomaterials (Basel, Switzerland) · 2022Article
- Engineering the Dipole Orientation and Symmetry Breaking with Mixed-Dimensional Heterostructures.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022Article
- Giant All-Optical Modulation of Second-Harmonic Generation Mediated by Dark Excitons.ACS photonics · 2021Article
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Authors and funding
5 authors.
Funding
Abstract
The light-matter interaction in materials is of remarkable interest for various photonic and optoelectronic applications, which is intrinsically determined by the bandgap of the materials involved. To extend the applications beyond the bandgap limit, it is of great significance to study the light-matter interaction below the material bandgap. Here, we report the ultrafast transient absorption of monolayer molybdenum disulfide in its sub-bandgap region from ~0.86 µm to 1.4 µm. Even though this spectral range is below the bandgap, we observe a significant absorbance enhancement up to ~4.2% in the monolayer molybdenum disulfide (comparable to its absorption within the bandgap region) due to pump-induced absorption by the excited carrier states. The different rise times of the transient absorption at different wavelengths indicate the various contributions of the different carrier states (i.e., real carrier states in the short-wavelength region of ~<1 µm, and exciton states in the long wavelength region of ~>1 µm). Our results elucidate the fundamental understanding regarding the optical properties, excited carrier states, and carrier dynamics in the technologically important near-infrared region, which potentially leads to various photonic and optoelectronic applications (e.g., excited-state-based photodetectors and modulators) of two-dimensional materials and their heterostructures beyond their intrinsic bandgap limitations.
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Registered trials
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