research — Directly measuring optical electric fields associated with light-matter interactions grants in-depth access to the underlying physical mechanisms, on their natural (sub-)femtosecond time scale. We advance electric-field-resolved metrology serving applications ranging from vibrational spectroscopy in the IR molecular fingerprint region to time-resolved …

areas of expertise — Passive optical resonators have traditionally been used to boost the detection sensitivity in the spectroscopy of gases. This is made possible by the fact that light propagates back and forth between the highly-reflective mirrors of the resonator within a well-defined transverse mode, thus enhancing the interaction path length with a diluted …