Photoemissive thin film with strange property for laser pulse detection

Q. D. Wu; W. M. Liu; J. L. Wu; Y. W Dong; Z. Q. Xue; Bernard Cunin; H. Gress; Francine Heisel; T. Picornell; Joseph-Albert Miehe

doi:10.1117/12.142002

1 April 1993 Photoemissive thin film with strange property for laser pulse detection

Q. D. Wu, W. M. Liu, J. L. Wu, Y. W Dong, Z. Q. Xue, Bernard Cunin, H. Gress, Francine Heisel, T. Picornell, Joseph-Albert Miehe

Author Affiliations +

Proceedings Volume 1982, Photoelectronic Detection and Imaging: Technology and Applications '93; (1993) https://doi.org/10.1117/12.142002
Event: Photoelectronic Detection and Imaging: Technology and Applications '93, 1993, Beijing, China

Abstract

A kind of photoemissive thin film which can be exposed or stored in the atmosphere and can be used again in a vacuum system without any activation process for laser pulse detection is presented. They are different from usual photoemissive materials, since they do not contain alkali elements. They consist of metallic oxide thin film or other material thin film embedded with metallic ultrafine particles. A main interesting material is barium oxide thin film embedded with Ag ultrafine particles. This thin film can detect single laser pulse or laser pulses with high repetition frequencies (approximately 10⁸ pulses/sec.), pulse duration ns to ps, and energy mJ to nJ per pulse.

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Q. D. Wu, W. M. Liu, J. L. Wu, Y. W Dong, Z. Q. Xue, Bernard Cunin, H. Gress, Francine Heisel, T. Picornell, and Joseph-Albert Miehe "Photoemissive thin film with strange property for laser pulse detection", Proc. SPIE 1982, Photoelectronic Detection and Imaging: Technology and Applications '93, (1 April 1993); https://doi.org/10.1117/12.142002

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