Near-field imaging of dipole emission modulated by an optical grating
Abstract
Attosecond measurements have been achieved in technically demanding pump-probe experiments by photoelectron streaking with stable infrared lasers and extreme-ultraviolet (XUV) instruments. Here, we demonstrate an efficient single-image all-optical measurement of an isolated attosecond pulse for its complete temporal characterization. We create the attosecond pulse with a 0.1-mJ, few-cycle, infrared pump beam and modulate it with an obliquely incident same-frequency weak beam. By refocusing the XUV beams, we obtain a spectrally resolved XUV image, showing the spectral phase of the attosecond pulse. Near-field imaging allows us to measure our pulse in 150 shots. This efficiency will be important for attosecond pulses in the water-window region. For complex systems, multi-electron dynamics is encoded in the temporal structure of attosecond pulses.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 17, 2021
- Source ID
- 10.1364/optica.433271
Entities
People
- Chunmei Zhang
- Dong Hyuk Ko
- Graham G. Brown
- Paul Corkum
Organizations
- Air Force Office of Scientific Research
- Canada Foundation for Innovation
- Canada Research Chair
- National Research Council
- Natural Sciences and Engineering Research Council
- University of Ottawa