The Experts below are selected from a list of 86964 Experts worldwide ranked by ideXlab platform
Ichiro Omura - One of the best experts on this subject based on the ideXlab platform.
-
Power Semiconductor Devices for Hybrid, Electric, and Fuel Cell Vehicles
Proceedings of the IEEE, 2007Co-Authors: Z J Shen, Ichiro OmuraAbstract:Power semiconductor Devices are key components in all power electronic systems, particularly in hybrid, electric, and fuel cell vehicles. This paper reviews the system requirement and latest development of power semiconductor Devices including IGBTs, freewheeling diodes, and advanced power module technology in relating to electric vehicle applications. State-of-the-art Silicon Device technologies, their future trends, and theoretical limits are discussed. Emerging wide bandgap semiconductor Devices such as SiC Devices and their potential applications in electric vehicles are also reviewed
-
power semiconductor Devices for hybrid electric and fuel cell vehicles insulated gate bipolar transistors igbts freewheeling diodes and wide bandgap Devices able to meet vehicle power train conversion needs are in development
2007Co-Authors: John Z Shen, Ichiro OmuraAbstract:Power semiconductor Devices are key compo- nents in all power electronic systems, particularly in hybrid, electric, and fuel cell vehicles. This paper reviews the system requirement and latest development of power semiconductor Devices including IGBTs, freewheeling diodes, and advanced power module technology in relating to electric vehicle ap- plications. State-of-the-art Silicon Device technologies, their future trends, and theoretical limits are discussed. Emerging wide bandgap semiconductor Devices such as SiC Devices and their potential applications in electric vehicles are also reviewed.
Michal Lipson - One of the best experts on this subject based on the ideXlab platform.
-
ultra low power parametric frequency conversion in a Silicon microring resonator
Optics Express, 2008Co-Authors: Amy C. Turner, Mark A. Foster, Alexander L. Gaeta, Michal LipsonAbstract:We demonstrate parametric wavelength conversion via four-wave mixing using ultra-low peak pump powers of a few milliwatts in a micrometer-scale Silicon Device. The response time of our Device is 100 ps allowing for implementation in high-bandwidth optical communications. At these ultra-low power levels and microscale sizes, it should be possible to realize hundreds of these Devices operating simultaneously on a single chip.
-
All-optical regeneration on a Silicon chip
Optics Express, 2007Co-Authors: Reza Salem, Michal Lipson, Mark A. Foster, Amy C. Turner, David F. Geraghty, Alexander L. GaetaAbstract:We demonstrate optical 2R regeneration in an integrated Silicon Device consisting of an 8-mm-long nanowaveguide followed by a ring-resonator bandpass filter. The regeneration process is based on nonlinear spectral broadening in the waveguide and subsequent spectral filtering through the ring resonator. We measure the nonlinear power transfer function for the Device and find an operating peak power of 6 W. Measurements indicate that the output pulse width is determined only by the bandwidth of the bandpass filter. Numerical modeling of the nonlinear process including free-carrier effects shows that this Device can be used for all-optical regeneration at telecommunication data rates.
-
Integrated Optical Regenerator on a Silicon Chip
2007 Conference on Lasers and Electro-Optics (CLEO), 2007Co-Authors: Reza Salem, Mark A. Foster, Amy C. Turner, David F. Geraghty, Alexander L. Gaeta, Michal LipsonAbstract:We demonstrate all-optical regeneration in a Silicon Device consisting of a nano waveguide followed by an integrated bandpass filter. Nonlinear power transfer function was measured showing the Device can operate at peak powers < 5W.
-
optical bistability on a Silicon chip
Optics Letters, 2004Co-Authors: Vilson R. Almeida, Michal LipsonAbstract:We demonstrate, for the first time to our knowledge, optical bistability on a highly integrated Silicon Device, using a 5‐µm-radius ring resonator. The strong light-confinement nature of the resonator induces nonlinear optical response with low pump power. We show that the optical bistability allows all-optical functionalities, such as switching and memory with microsecond time response and a modulation depth of 10 dB, driven by pump power as low as 45 µW. Silicon optical bistability relies on a fast thermal nonlinear optical effect presenting a 500-kHz modulation bandwidth.
Z J Shen - One of the best experts on this subject based on the ideXlab platform.
-
Power Semiconductor Devices for Hybrid, Electric, and Fuel Cell Vehicles
Proceedings of the IEEE, 2007Co-Authors: Z J Shen, Ichiro OmuraAbstract:Power semiconductor Devices are key components in all power electronic systems, particularly in hybrid, electric, and fuel cell vehicles. This paper reviews the system requirement and latest development of power semiconductor Devices including IGBTs, freewheeling diodes, and advanced power module technology in relating to electric vehicle applications. State-of-the-art Silicon Device technologies, their future trends, and theoretical limits are discussed. Emerging wide bandgap semiconductor Devices such as SiC Devices and their potential applications in electric vehicles are also reviewed
Alexander L. Gaeta - One of the best experts on this subject based on the ideXlab platform.
-
ultra low power parametric frequency conversion in a Silicon microring resonator
Optics Express, 2008Co-Authors: Amy C. Turner, Mark A. Foster, Alexander L. Gaeta, Michal LipsonAbstract:We demonstrate parametric wavelength conversion via four-wave mixing using ultra-low peak pump powers of a few milliwatts in a micrometer-scale Silicon Device. The response time of our Device is 100 ps allowing for implementation in high-bandwidth optical communications. At these ultra-low power levels and microscale sizes, it should be possible to realize hundreds of these Devices operating simultaneously on a single chip.
-
Integrated Optical Regenerator on a Silicon Chip
2007 Conference on Lasers and Electro-Optics (CLEO), 2007Co-Authors: Reza Salem, Mark A. Foster, Amy C. Turner, David F. Geraghty, Alexander L. Gaeta, Michal LipsonAbstract:We demonstrate all-optical regeneration in a Silicon Device consisting of a nano waveguide followed by an integrated bandpass filter. Nonlinear power transfer function was measured showing the Device can operate at peak powers < 5W.
-
All-optical regeneration on a Silicon chip
Optics Express, 2007Co-Authors: Reza Salem, Michal Lipson, Mark A. Foster, Amy C. Turner, David F. Geraghty, Alexander L. GaetaAbstract:We demonstrate optical 2R regeneration in an integrated Silicon Device consisting of an 8-mm-long nanowaveguide followed by a ring-resonator bandpass filter. The regeneration process is based on nonlinear spectral broadening in the waveguide and subsequent spectral filtering through the ring resonator. We measure the nonlinear power transfer function for the Device and find an operating peak power of 6 W. Measurements indicate that the output pulse width is determined only by the bandwidth of the bandpass filter. Numerical modeling of the nonlinear process including free-carrier effects shows that this Device can be used for all-optical regeneration at telecommunication data rates.
Vladimir A. Gritsenko - One of the best experts on this subject based on the ideXlab platform.
-
Electronic structure of Silicon nitride
Physics-Uspekhi, 2012Co-Authors: Vladimir A. GritsenkoAbstract:Amorphous oxide SiO2, oxynitride SiOxNy, and Silicon nitride Si3N4 are the three key dielectric materials of Silicon Device technology. Silicon nitride is currently finding use in a variety of applications, in particular, as a storage medium in next-generation flash memory Devices. Varying the chemical composition of nonstoichiometric Silicon-rich SiNx allows a wide-range control of its optical and electrical properties. In this review, an analysis of the electronic structure of Silicon nitride of varying composition is presented.