From sub-cycle pulses to
high-resolution microscopy
Our independent group “Femtosecond Fieldoscopy” is funded by the Max Planck Society and located at the Max Planck Institute for the Science of Light.
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In femtosecond fieldoscopy, molecules are excited by ultrashort, phase-coherent pulses and the complex electric field of the transmitted light containing the molecular information is directly measured afterward. By using ultrashort pulses, the excitation is confined to a time window of tens of femtoseconds. Hence, the response emerging from the sample is separated temporally from the ultrashort excitation pulse allowing for high detection sensitivity and dynamic range.
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Furthermore, measuring the complex electric field allows for extracting the full spectral phase information of the molecular response, adding a new dimension to the gained spectroscopic data.
By employing the state-of-the-art femtosecond laser technology and pushing the frontiers of field-detection technique towards petahertz frequencies, we are able to resolve complex electric field of light from visible down to terahertz.​
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