Ultrafast scanning probe microscopy
Copyright policy )Ultrafast scanning probe microscopy
We have measured the response of the tunneling gap of a scanning tunneling microscope to excitation by a subpicosecond electrical pulse. Combining ultrashort laser pulses techniques with scanning tunneling microscopy (STM), we have obtained simultaneous 2-ps time resolution and 50-Å spatial resolution. This is a 9 orders of magnitude improvement in the time resolution currently attainable with STM. The potential of this powerful technique for studying ultrafast dynamical phenomena on surfaces with atomic resolution and mesoscopic electronic device physics is discussed.
- University of California, Berkeley United States
- Lawrence Berkeley National Laboratory United States
- University of North Texas United States
- University of California, San Francisco United States
47 Other Instrumentation, Laser Spectroscopy 440800, Time Resolution, Electron Microprobe Analysis, Miscellaneous Instrumentation
47 Other Instrumentation, Laser Spectroscopy 440800, Time Resolution, Electron Microprobe Analysis, Miscellaneous Instrumentation
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