光电二极管
数值孔径
光学
显微镜
材料科学
光电子学
光圈(计算机存储器)
物理
波长
声学
作者
Andrew C. Millard,D. N. Fittinghoff,Jeffrey A. Squier,Markus Müller,Alexander L. Gaeta
标识
DOI:10.1046/j.1365-2818.1999.00480.x
摘要
Summary We demonstrate for the first time that the two‐photon response of GaAsP photodiodes can be used to conveniently characterize the spatial and temporal profiles of ultrashort pulses at the focus of a high numerical aperture system.
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