Development of femtosecond time-resolved scanning tunneling microscopy for nanoscale science and technology

We proposed a promising new design for achieving ultimate spatial and temporal resolution, by combining a short-pulse laser and STM. Using this method, time-resolved tunneling current measurement in the subpicosecond range was successfully demonstrated, this is shaken-pulse-pair-excited STM (SPPX-STM) satisfies the requirements for exploring the ultrafast dynamics of the local quantum functions occurring in organized small structures. We hope this new technology will promote the development of future research on the nanoscale.