Spatio-temporal imaging of voltage pulses with a laser-gated photoconductive sampling probe
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- Steffens, W., Heisig, S., Keil, U. et al. Appl Phys B (1999) 69: 455. doi:10.1007/s003400050834
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We report on the fabrication process of a scanning force microscopy (SFM) cantilever probe suitable for the investigation of ultrafast transient signals in microwave integrated circuits. High temporal resolution is achieved by integrating a laser-gated photoconductive switch within a coplanar waveguide structure onto a low-temperature GaAs cantilever. This is demonstrated by temporal and spatio-temporal measurements performed on a coplanar strip line.