Frequency-upconversion in Multilayer MoS2 and Bio-templated Metal Nanoclusters
ORAL
Abstract
Thin film TMDs and metal nanoclusters display strong light-matter interactions, making them promising candidates for nanoscale nonlinear optical devices. In this work, we explore second and third harmonic generation in mechanically exfoliated multilayer MoS2 and bio-template derived metal nanoclusters. MoS2 flakes were characterized via AFM, Raman spectroscopy, and optical microscopy to evaluate thickness. The metal nanoclusters were synthesized with a green, aqueous based protein assisted synthesis method, with characterization by UV-vis, photoluminescence, and TEM to determine absorption, emission, and size properties. Under femtosecond excitation, both systems exhibit clear nonlinear responses, including measurable second and third harmonic signals. These results highlight the potential of combining 2D materials with metal nanoclusters to create tunable, environmentally friendly nonlinear optical components.
*Research was sponsored by the Army Research Laboratory and was accomplished under Cooperative Agreement NumberW911NF-24-2-0243. The views and conclusions contained in this document are those of the authors and should not be interpretedas representing the official policies, either expressed or implied, of the Army Research Laboratory or the U.S. Government. TheU.S. Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notationherein.Funding through Applied Research for the Advancement of Science and Technology Priority (ARAP) Program.
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Presenters
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Cameron Shock
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