OPTICAL SWITCH ON THE BASIS OF MIM HIGH-SENSITIVITY SPP TEMPERATURE

摘要

An optical switch on the basis of MIM high-sensitivity SPP, consisting of: a rectangular chamber (1), a control light absorption chamber (2), a silver block (3), a vertical waveguide (4), a horizontal waveguide (5), three metal films (7), a terahertz control light (100), and a horizontally propagating signal light (200); the rectangular chamber (1) is located at an input terminal of the control light; the control light absorption chamber (2) is connected to the vertical waveguide (4); the silver block (3) is disposed within the vertical waveguide (4) and can be moved; the vertical waveguide (4) and the horizontal waveguide (5) are connected; the terahertz control light (100) is located at an upper end of the rectangular chamber (1); said MIM is a waveguide having a metal-insulator-metal structure. The optical switch is compact in structure, small in size, highly sensitive and easily integrated; the optical switch provides turn-on and turn-off functions, wherein a light extinction ratio thereof may be up to 10dB.