Work

Mid-infrared radiation generation in air by four-wave mixing of femtosecond laser pulses

Year: 2026

Type: book-chapter

Abstract: Tunable mid-infrared radiation in the range of $(2.06)$–$(12\,\mu)$m was generated in air via loosely focused two-color femtosecond laser pulses. The emission spectra and beam profiles confirm its origin as four-wave difference-frequency mixing in a low-density air plasma filament. Near phase-matching due to low air dispersion opens possibilities for efficient energy conversion at high powers.

Source: Optical and Quantum Electronics

DOI: 10.1007/s11082-026-08794-4

Authors: Virgilijus Vaičaitis, Mateusz Rebarz, Shirly Espinoza, Ona Balachninaitė

Institutions: Vilnius University, Extreme Light Infrastructure Beamlines, Extreme Light Infrastructure ERIC (Czech Republic)

Language: English

Topic: Laser-Matter Interactions and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,290

OpenAlex ID: W7154465973