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Carrier lifetime - PowerPoint PPT Presentation

Chapter 4

Chapter 4

Chapter 4. Photonic Sources. Contents. Review of Semiconductor Physics Light Emitting Diode (LED) - Structure, Material,Quantum efficiency, LED Power, Modulation Laser Diodes - structure, Modes, Rate Equation,Quantum efficiency, Resonant frequencies, Radiation pattern

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1.63k views • 74 slides
Jean-Christophe DELAGNES jc.delagnes@cpmoh.u-bordeaux1.fr

Jean-Christophe DELAGNES jc.delagnes@cpmoh.u-bordeaux1.fr

Ultrafast carrier dynamics in Br + -bombarded semiconductors investigated by Optical Pump - THz Probe spectroscopy. Jean-Christophe DELAGNES jc.delagnes@cpmoh.u-bordeaux1.fr. Outline. Introduction Experimental Setup Samples preparation Results InP InGaAs Pespectives.

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513 views • 32 slides
Jie Shan (a) , Feng Wang (b) , Ernst Knoesel (c) , Mischa Bonn (d) , and Tony F. Heinz (b)

Jie Shan (a) , Feng Wang (b) , Ernst Knoesel (c) , Mischa Bonn (d) , and Tony F. Heinz (b)

Conductivity in Photo-Excited Insulators Probed by THz Time-Domain Spectroscopy. Jie Shan (a) , Feng Wang (b) , Ernst Knoesel (c) , Mischa Bonn (d) , and Tony F. Heinz (b) (a) Case Western Reserve University (b) Columbia University (c) Rowan University

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444 views • 26 slides
Photovoltaic effect and cell principles

Photovoltaic effect and cell principles

Photovoltaic effect and cell principles. 1. Light absorption in materials and excess carrier generation. Photon energy h ? = hc/ ? (h is the Planck constant) photon momentum ? 0. Light is absorbed in the material. ? (x) is the light intensity.

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790 views • 22 slides
Kara Hoffman

Kara Hoffman

Novel Ideas for Beam Profiling in a Muon Cooling Channel. Kara Hoffman. The University of Chicago Enrico Fermi Institute. The challenge. While disturbing the beam as little as possible measure: intensity size/profile (in 2 dimensions?) timing between bunches or pulses

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332 views • 17 slides

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