title: Design rules for phase-matched terahertz surface electromagnetic wave generation by optical rectification in a nonlinear planar waveguide.
abstract: The theory of guided waves in metal-dielectric planar multilayer structures is applied to reduce the loss and maximize optical nonlinearity for efficient terahertz-field generation in a surface electromagnetic wave by femtosecond laser pulses confined in a (chi)((2)) nonlinear planar waveguide. For typical parameters of thin-film polymer waveguides and metal-dielectric interfaces, the optimal size of the (chi)((2)) waveguide core providing the maximum efficiency of terahertz plasmon-field generation is shown to be less than the wavelength of the optical pump field.
authors.affiliation: Department of Physics, International Laser Center, M.V. Lomonosov Moscow State University, Vorob'evy Gory, Moscow, Russia 119992.
authors.forename: Roman R
authors.initials: RR
authors.lastname: Musin
authors.forename: Qirong
authors.initials: Q
authors.lastname: Xing
authors.forename: Yanfeng
authors.initials: Y
authors.lastname: Li
authors.forename: Minglie
authors.initials: M
authors.lastname: Hu
authors.forename: Lu
authors.initials: L
authors.lastname: Chai
authors.forename: Qingyue
authors.initials: Q
authors.lastname: Wang
authors.forename: Yuliya M
authors.initials: YM
authors.lastname: Mikhailova
authors.forename: Maksim M
authors.initials: MM
authors.lastname: Nazarov
authors.forename: Alexander P
authors.initials: AP
authors.lastname: Shkurinov
authors.forename: Aleksei M
authors.initials: AM
authors.lastname: Zheltikov
mesh_terms: D000465:Algorithms; D017076:Computer-Aided Design; D004574:Electromagnetic Fields; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008670:Metals / Q000737:chemistry*; D008872:Microwaves; D017711:Nonlinear Dynamics; D055095:Optics and Photonics / Q000295:instrumentation*; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D013499:Surface Properties
chemical_list: D008670:Metals