optical harmonic generationphotonic devices2D materials are emerging as ideal candidates for fundamental investigations and new technologies due to their unique optoelectronic properties. Giant nonlinear suscep
(second, third and fourth harmonic generation) by more than three orders of magnitude. Systematic experimental results indicate that this enhancement is driven by a non-trivial mechanism of multiphoton-excitation resonance energy transfer, where the quantum dots directly deliver their strongly absorbed ...
Two-dimensional materials such as graphene and transition metal dichalcogenides (TMDs) hold great promise for nonlinear optical applications. They have a strong and broadband optical response13,14, combined with the possibility of harmonic generation enhancement at excitonic resonances in TMDs15and at mul...
New possibilities for future developments in electronic and optical devices have been unlocked by recent advancements in two-dimensional (2D) materials, according to Penn State researchers. The researchers, led by Shengxi Huang, assistant professor of electrical engineering and biomedical engineering at ...
More importantly, with broken inversion symmetry, 3R phase layers show a quadratically increased second harmonic generation (SHG) intensity with respect to layer numbers. Furthermore, by polarization-resolved SHG, a uniform polarization preference is observed in bilayer and trilayer 3R phase WS2, ...
Electromagnetic field fluctuations and optical nonlinearities in metal-dielectric compositesTheoretical or Mathematical, General or Review/ Anderson modelcomposite materialselectromagnetic fieldsfluctuationsmultiphoton processesmultiwave mixingoptical harmonic generation...
In the prospects and conclusion section, we discuss the major challenges, potential solutions as well as the future development of MTAI. 2. The Physical Principle of MTAI In this section, we mathematically describe the physical processes involved with thermoacoustic wave generation which are ...
In the following, nonlinear optical properties of dye-loaded molecular sieves will be discussed focussing (1) on a peculiar effect of the second-order susceptibility, i.e., the generation of the second optical harmonic or frequency doubling, and (2) on a special effect of the third-order sus...
Imaging molecular structure with Stokes-polarimeter based second harmonic generation microscopy We analyzed the polarization states of second harmonic generation (SHG) signals from starch granules and type I collagen through a four-channel photon coun... N Mazumder,J Qiu,CW Hu,... - 《Proceedings ...
Research Highlights18 Dec 2023Nature Reviews Materials Volume: 9, P: 6 New nonlinear opportunities in the ultraviolet A nonlinear optical crystal permits harmonic generation of coherent radiation deep into the ultraviolet, reaching below 200 nm. ...