期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 15, 期 23, 页码 L349-L352出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/15/23/102
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We report the observation of strong second-harmonic radiation from a thin silver film containing randomly distributed small holes. A pulsed laser beam of wavelength 1064 nm impinges at an angle of incidence 45degrees on the film, and the reflection is collected by a CCD detector and analysed by a high-resolution spectrometer. Strong second-harmonic radiation was observed at the wavelength of 532 nm with a halfwidth of 40 nm.
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