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A new effect in multiphoton photoeffect of a gold surface induced by picosecond laser pulses

 

作者: L. A. Lompre,   G. Mainfray,   C. Manus,   J. Thebault,   Gy. Farkas,   Z. Horvath,  

 

期刊: Applied Physics Letters  （AIP Available online 1978）
卷期: Volume 33, issue 2  

页码: 124-126

 

ISSN:0003-6951

 

年代: 1978

 

DOI:10.1063/1.90306

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A bandwidth‐limited 15‐psec laser pulse is used to induce multiphoton photoelectric emission from a gold metal cathode. The wavelength is tuned between 10 580 and 10 620 A˚ to investigate the transition from a four‐photon to a five‐photon photocurrentjfrom a gold surface. This transition gives rise to a new effect marked by a dramatic change of the slopen=∂ logj/∂ logI, whereIis the laser intensity.

 

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