Against the backdrop of accelerated glacier melting caused by global warming, dynamic monitoring of glacial lake water quality has become an important topic in environmental science. There is a ...

Nonlinear frequency conversion exploits the intrinsic interaction between intense optical fields and the polarisation response of a medium to generate new colours of light. When the electric field of ...

Researchers at the University of Tsukuba employ a modified mathematical technique to make complicated nonlinear equations more tractable, which can lead to more accurate control systems for mechanical ...

Vacuum ultraviolet (VUV, 100–200 nm) light sources are indispensable for advanced spectroscopy, quantum research, and semiconductor lithography. Although second harmonic generation (SHG) using ...

The nonlinear susceptibility is a measure of a material's nonlinear response to an applied electric field. It determines the strength of the nonlinear effects and is related to the crystal's symmetry ...

(Left) Schematic illustration of the experimental setup used to demonstrate bidirectional asymmetric wave conversion. (Right) Visualization of upconversion and downconversion depending on the ...