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Monochromatic Conical IR Emission from Decaying KrF Laser Filaments in Xenon as Coherent Stimulated Four-Wave Mixing Process
- Igor V. Smetanin,
- Alexey V. Shutov,
- Nikolay N. Ustinovskii,
- Vladimir D. Zvorykin,
- Anna V. Bogatskaya and
- Alexander M. Popov
We develop theoretical background for the new nonlinear optical phenomenon of narrowly directed monochromatic IR conical emission which has been recently observed when 248-nm UV filaments propagate in xenon (V. D. Zvorykin, et al., Laser Phys. Lett....