The optical beam splitter based on metal nanoslits containing nonlinear materials is designed and op timized.Finite-difference time-domain(FDTD) method is employed to numerically simulate optical beam splitting properties of TM-polarized plane wave with a wavelength of 850 nm via subwavelength silver nanoslits containing nonlinear materials InGaAsP.The results show that the number of output ports or energy distribution can be adjust ed simply by changing the width,number or order of the nanoslits.The number of output ports can be dynamically ...