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 ...
Terahertz (THz) wave generation has emerged as a frontier in both fundamental physics and practical applications, spanning imaging, spectroscopy and high-speed telecommunications. Central to these ...
Columbia researchers engineer first technique to exploit the tunable symmetry of 2D materials for nonlinear optical applications, including laser, optical spectroscopy, imaging, and metrology systems, ...
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