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Physics and engineering of strong terahertz pulse generation

November 12, 2019 - 4:00pm
Speaker: 
Kiyong Kim
Institution: 
UMD

Terahertz science and technology is of great current interest due to its potential applications in bio-medical imaging and spectroscopy, chemical/explosive detection, wireless communication, security scanning, and plasma diagnostics. However, few sources and detectors exist in the terahertz frequency band. This leaves a major gap between the optical and microwave regions, for which new high-power terahertz sources would have a major impact. One promising source pioneered by my group and now adopted worldwide is based on controlling the laser-driven orbits of free electrons liberated by high field ionization of gases. In this talk, I will present recent experiments that provide a better understanding of this process, enabling us to achieve a world record in THz generation efficiency. This source will open up new opportunities to explore extreme terahertz-driven nonlinear processes in atoms, molecules, and plasmas.

Further information about seminars can be found at http://umdphysics.umd.edu/events/calendar.html . To subscribe or unsubscribe, email physchair-rsvp@physics.umd.edu.

PSC Lobby
20742