Femto-Second Electron Transit Time Characterization In Gan/Algan Quantum Cascade Detector At 1.5 Micron

A Vardi,Samer Sakr,J Mangeney,P K Kandaswamy,E Monroy,M Tchernycheva,S E Schacham,F H Julien,Gad Bahir

APPLIED PHYSICS LETTERS（2011）

引用 32|浏览14

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摘要

The ultra fast carrier dynamic in GaN/AlGaN quantum cascade detector was investigated using a time-resolved bias-lead monitoring technique. It is demonstrated that the intrinsic speed limitation, governed by the carrier transit time, is smaller than 1 ps, corresponding to a frequency cut off above 200 GHz. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3660583]

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关键词

band gap,quantum well

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