Temporal Characteristics of GaAs NEA and Alkali Metal Photocathodes 被引量：1

Temporal Characteristics of GaAs NEA and Alkali Metal Photocathodes

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摘要 The temporal characteristics of GaAs NEA and alkali metal photocathodes are studied using Monte Carlo simulation method. The electron transit time and its distribution functions in the photocathodes are calculated. Based on the results, the time modulation transfer functions and temporal resolutions of the photocathodes are obtained. The results show that the response time and temporal resolution of alkali metal photocathode is in femitosecond order and those of GaAs NEA photocathode are in picosecond order. The temporal characteristics of GaAs NEA and alkali metal photocathodes are studied using Monte Carlo simulation method. The electron transit time and its distribution functions in the photocathodes are calculated. Based on the results, the time modulation transfer functions and temporal resolutions of the photocathodes are obtained. The results show that the response time and temporal resolution of alkali metal photocathode is in femitosecond order and those of GaAs NEA photocathode are in picosecond order.

作者李相民周立伟

机构地区 Department of Optical Engineering

出处《Journal of Beijing Institute of Technology》 EI CAS 2003年第4期381-384,共4页 北京理工大学学报（英文版）

基金 theNationalNaturalScienceFoundation (K695 710 0 5 )

关键词 GaAs photocathode alkali metal photocathode Monte Carlo simulation time modulation transfer function GaAs photocathode alkali metal photocathode Monte Carlo simulation time modulation transfer function

分类号 TN204 [电子电信—物理电子学]

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Journal of Beijing Institute of Technology

2003年第4期

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Temporal Characteristics of GaAs NEA and Alkali Metal Photocathodes 被引量：1

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