Study on the parameters of surface potential barrier of NEA GaAs photocathode

Jun Niu; Dayong Huang; Yijun Zhang; Benkang Chang

doi:10.1117/12.906121

28 October 2011 Study on the parameters of surface potential barrier of NEA GaAs photocathode

Jun Niu, Dayong Huang, Yijun Zhang, Benkang Chang

Proceedings Volume 8205, 2011 International Conference on Photonics, 3D-Imaging, and Visualization; 82050Q (2011) https://doi.org/10.1117/12.906121
Event: 2011 International Conference on Photonics, 3D-imaging, and Visualization, 2011, Guangzhou, China

Abstract

According to the ratio of the maximum values of photocurrents arising during the single Cs activation and the Cs-O activation phase for NEA GaAs photocathode, and combining the theoretical energy distributions of the electrons tunneling through the single and double potential barriers, a new method for evaluating the parameters of surface potential barrier of NEA GaAs photocathode was presented. The results obtained by this method greatly accord with the double-dipole model theory, and are in agreement with the results obtained by fitting the experimental curve for electrons energy distribution. The method is simple and available, and enriches one cheap approach for evaluating the activation effect and the surface characteristics of NEA GaAs photocathodes.

Citation Download Citation

Jun Niu, Dayong Huang, Yijun Zhang, and Benkang Chang "Study on the parameters of surface potential barrier of NEA GaAs photocathode", Proc. SPIE 8205, 2011 International Conference on Photonics, 3D-Imaging, and Visualization, 82050Q (28 October 2011); https://doi.org/10.1117/12.906121

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available