http://szkk.pte.hu/en/news/a_compact_source_of_extremely_strong_terahertz_fields
Researchers of the PTE SZKK High-Field Terahertz Research Group developed a compact, semiconductor terahertz radiation source, which enabled to increase the efficiency by more than hundred times. The source is pumped at an infrared wavelength and utilizes a unique optical grating for the generation of terahertz pulses with extremely high electric field. The work opens up new perspectives for strong-field control of matter and for constructing compact particle accelerators for materials science and medicine.
The publication has also been highlighted on the cover of the Optica journal.
Original publication: J. A. Fülöp et al., Optica 3, 1075 (2016)
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