A study of ionisation of free and clustered molecules under the action of femtosecond laser radiation

Journal Article · Fri May 30 00:00:00 EDT 2014 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2014V044N05ABEH015434· OSTI ID:22375917

Apatin, V M; Kompanets, V O; Lokhman, V N; Ogurok, N-D D; Poydashev, D G; Ryabov, E A; Chekalin, S V ^[1]

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1. Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow (Russian Federation)

We have investigated the processes of excitation and ionisation of monomers and clusters of CF{sub 3}I, IF{sub 2}CCOF and Fe(CO){sub 5} molecules under the action of femtosecond laser radiation at the wavelengths of 266, 400 and 800 nm. It is concluded that the nature of the excitation of free molecules and clustered molecules by femtosecond pulses is different. The simulation of the ionisation yield of the objects under study has shown that the multiphoton ionisation is the key mechanism in the case of free molecules, while the field ionisation may play a significant role for clusters, in particular, in the case of ionisation at the wavelength of λ = 800 nm. (interaction of radiation with matter)

• OSTI ID: 22375917
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 44, Issue 5; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CARBON COMPOUNDS
FLUORINE COMPOUNDS
IONIZATION
IRON CARBONATES
LASER RADIATION
MOLECULAR CLUSTERS
MOLECULES
MONOMERS
MULTI-PHOTON PROCESSES
NEAR INFRARED RADIATION
NEAR ULTRAVIOLET RADIATION
OXYGEN COMPOUNDS
PULSES
SIMULATION
VISIBLE RADIATION