Evidence for acoustic waves induced by focused ion beams
作者:
Jochen Teichert,
Lothar Bischoff,
Bernd Ko¨hler,
期刊:
Applied Physics Letters
(AIP Available online 1996)
卷期:
Volume 69,
issue 11
页码: 1544-1546
ISSN:0003-6951
年代: 1996
DOI:10.1063/1.117999
出版商: AIP
数据来源: AIP
摘要:
Acoustic waves induced by an intensity modulated focused ion beam have been measured. The experiments were performed with Ga+ions of 35 keV at a current of 3 nA and variable chopping frequency up to 10 MHz in a common focused ion beam system. The acoustic signals were detected by means of a piezoelectric sensor with integrated preamplifier. Frequency and position sensitivity of the sensor has been measured by laser excitation. Ion acoustic measurements have been carried out at the resonance frequencies of the sensor. A dependence on the sample material was found. The results show that the ion acoustic effect can be utilized for imaging and material analysis in focused ion beam systems. ©1996 American Institute of Physics.
点击下载:
PDF
(68KB)
返 回