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The focus of our research is to integrate the techniques of attosecond physics, scanning tunneling microscopy and ultrafast Raman spectroscopy to realize a four-dimensional space-time quantum microscope to capture electrons and atoms in action in molecules, two-dimensional materials and superconductors. The four-dimensional microscope is capable of probing matter at fundamental space-time quantum limits. We also pursue experiments on molecules present in the cavity of 'on-chip' nanodevices exploring different regimes of light-matter interaction.

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