Journal
ACS PHOTONICS
Volume 6, Issue 6, Pages 1351-1355Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.9b00219
Keywords
ultrafast nonlinear optics; ultrashort pulse generation; time-resolved spectroscopy; pulse shaping; pulse characterization
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Funding
- Deutsche Forschungsgemeinschaft (DFG) [PF 887/1-1]
- Daimler and Benz Stiftung [32 07/15]
- EuropHische Fonds fur regionale Entwicklung (EFRE) Thuringen [2016 FGI 0023]
- Carl-Zeiss-Stiftung
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Laser pulses with a duration of one femto-second or shorter can be generated both in the visible-infrared (Vis-IR) and in the extreme UV, but the deep UV is a spectral region where such extremely short pulses have not yet been demonstrated. Here, a method for the synthesis of ultrashort pulses in the deep UV is demonstrated, which utilizes the temporal and spatial harmonics that are generated by two noncollinear Vis-IR pulses in a thin MgF2 plate. By controlling the groove-envelope phase of the Vis-IR pulses, spatial harmonics are concatenated to form deep UV waveforms with a duration of 1.5 fs.
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