Ultrafast X-Ray Detectors, High-Speed Imaging, and Applications, July 31- August 1, 2005, San Diego, CA, USA
high harmonic generation; molecular dynamic imaging; wavepackets; harmonic generation; molecular orientation; optical resolving power; ultrashort pulses; medical imaging
High harmonics produced in aligned molecules contain the structural information of the outermost electron orbital that preferentially ionizes in intense laser fields. We show a method to reconstruct a 3-dimensional (3D) structure of the molecular orbital. The method is based on the technologies to align molecules and to produce attosecond XUV pulses, both of which utilize intense ultrashort laser pulses. We measured a set of high harmonic spectra produced in differently aligned N₂ molecules, and successfully reconstructed the image of the highest occupied molecular orbital (HOMO) with sub-angstrom resolution.
Ultrafast X-Ray Detectors, High-Speed Imaging, and Applications, 59200F (22 September 2005): 1–9.