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Dual-Mode Exciton Coupling in Epitaxially Registered Organic-Inorganic 2D Heterocrystals
Eunbeen Jeon, Kihyun Lee, Jieun Yeon +5
Two-dimensional (2D) heterocrystals comprising molecules and semiconductors can serve as an ideal platform for studying interfacial excitons and for future optoelectronic applicati…
Ubiquitous Antiparallel Domains in 2D Hexagonal Boron Nitride Uncovered by Interferometric Nonlinear Optical Imaging
Yeri Lee, Juseung Oh, Kyung Yeol Ma +10
Hexagonal boron nitride (hBN) supports a wide range of two-dimensional (2D) technologies, yet assessing its crystalline quality over large areas remains a fundamental challenge. Bo…
Exciton-Sensitized Second-Harmonic Generation in 2D Heterostructures
Wontaek Kim, Gyouil Jeong, Juseung Oh +4
The efficient optical second-harmonic generation (SHG) of two-dimensional (2D) crystals, coupled with their atomic thickness that circumvents the phase-match problem, has garnered…
Second-Harmonic Young Interference in Atom-Thin Heterocrystals
Wontaek Kim, Je Yhoung Ahn, Juseung Oh +2
Optical second-harmonic generation (SHG) is a nonlinear parametric process that doubles the frequency of incoming light. Only allowed in non-centrosymmetric materials, it has been…