Laboratory of Elementary Processes in Plasma

CRDS experiment


CRDS_3D
Cavity Ring-Down Spectroscopy

We are using very sensitive absorption spectroscopy in afterglow plasma. H3+ recombination with electron was studied. We measured absorption lines of H3+ isotopomers with high accuracy and studied reaction rates of ions in the specific quantum state.


The most important papers:

Stationary afterglow measurements of the temperature dependence of the electron–ion recombination rate coefficients of H2D+ and HD2+ in He/Ar/H2/D2 gas mixtures at T = 80–145 K
Plašil Radek, Dohnal P., Kálosi Á., Roučka Š., Johnsen R., Glosík J.
Plasma Sources Science and Technology (2017) 26(3) 035006.
doi:10.1088/1361-6595/aa5916

Binary and ternary recombination of H2D+ and HD2+ ions with electrons at 80 K
Dohnal P., Kálosi Á., Plašil R., Roučka Š., Kovalenko A., Rednyk S., Johnsen R., Glosík J.
Phys. Chem. Chem. Phys. (2016) 18(34) 23549–23553.
doi:10.1039/C6CP04152C

H2-assisted ternary recombination of H3+ with electrons at 300 K
Dohnal P., Rubovič P., Kálosi Á., Hejduk M., Plašil R., Johnsen R., Glosík J.
Physical Review A (2014) 90(4) 042708.
doi:10.1103/PhysRevA.90.042708

Binary and ternary recombination of D3+ ions at 80–130 K: Application of laser absorption spectroscopy
Dohnal P., Hejduk M., Rubovič P., Varju J., Roučka S., Plašil R., Glosík J.
The Journal of Chemical Physics (2012) 137(19) 194320.
doi:10.1063/1.4767396

Binary and ternary recombination of para-H3+ and ortho-H3+ with electrons: State selective study at 77–200 K
Dohnal P., Hejduk M., Varju J., Rubovič P., Roučka S., Kotrík T., Plašil R., Glosík J., Johnsen R.
The Journal of Chemical Physics (2012) 136(24) 244304.
doi:10.1063/1.4730162

Nuclear spin effect on recombination of H3+ ions with electrons at 77 K
Varju J., Hejduk M., Dohnal P., Jílek M., Kotrík T., Plašil R., Gerlich D., Glosík J.
Physical Review Letters (2011) 106(20) 203201 (4 pages).
doi:10.1103/PhysRevLett.106.203201