title: Wideband slow-light modes for time delay of ultrashort pulses in symmetrical metal-cladding optical waveguide.
abstract: A widebandwidth optical delay line is a useful device for various fascinating applications, such as optical buffering and processing of ultrafast signal. Here, we experimentally demonstrated effective slow light of sub-picosecond signal over 10 THz frequency range by employing the wide slow light modes in thick symmetrical metal-cladding optical waveguide (SMCOW). Ultrahigh-order guided modes travelling as slow light in waveguide together with strong confinement provided by metal-cladding makes this scheme nearly material dispersion independent and compatible with wide bandwidth operation.
authors.affiliation: Department of Physics, the State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Yuanlin
authors.initials: Y
authors.lastname: Zheng
authors.forename: Wen
authors.initials: W
authors.lastname: Yuan
authors.forename: Xianfeng
authors.initials: X
authors.lastname: Chen
authors.forename: Zhuangqi
authors.initials: Z
authors.lastname: Cao
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008670:Metals / Q000737:chemistry*; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*
chemical_list: D008670:Metals