Blue-violet HgI/HgI₂laser with wide-band optical pumping by a linearly stabilized surface discharge

Experimental and Theoretical Characterization of Dielectric Barrier Discharge in Mercury Diiodide Vapor, Xenon and Helium Gaseous Mixture

“…which was first discovered in experiments on the photodissociation of mercury diiodide [22,24] whereby С 2 Π + 1/2 and D 2 Π + 3/2 -states of mercury monoiodide molecules further populated due to dissociation of the excited state of mercury diiodide molecules, which results in accordance with the process of quenching (8) to a higher population of mercury monoiodide molecules B 2 + Σ 2 1 / -state and ultimately to a greater radiation power.…”

Mechanism of Growth of the Intensity of Radiation Emitted in the Blue-Violet Spectral Interval by Gas-Discharge Plasma Generated in the Mixtures of Mercury Diiodide Vapor, Xenon, and Neon

“…where is the concentration of molecules or atoms (HgI 2 , Xe, Ne) quenching the 2 Π 1/2 and 2 Π 3/2 states of a mercury monoiodide molecule, and Δ 1,2 the energy difference between the 2 Π 1/2 , 2 Π 3/2 , and 2 Σ + 1/2 states. Process (2) was revealed in the experiments dealing with photodissociation of mercury diiodide [24,25], as well as in our experiments under the conditions of barrier discharge in the mixture of mercury diiodide vapor, xenon, and helium [23].…”

Optical Emission of Atmospheric - Pressure Dielectric Barrier Discharge Plasma on Mercury Diiodide/Rare Gases Mixtures

“…Such processes can be energy transfer to mercury diiodide molecules in collisions with xenon atoms in a metastable state ( 3 P 2 ) and the process of quenching of С 2 Π 1/2 , D 2 Π 3/2 -states of mercury monoiodide molecules by xenon atoms with a nonradiative transition to the B 2 Σ + 1/2 -state (4,5). Process (5) has been found in experiments on photodissociation of mercury diiodide [27,34], as well as in our experiments on HgI* molecules excitation in terms of DBD on the mixture HgI 2 -Xe-He at the frequency of the pump pulse of the mixture up to 20 kHz [12]. The obvious argument in favor of this is the decrease in brightness of HgI(C → X) bands system of radiation in mercury diiodide vapor, xenon and neon mixture in comparison with mercury diiodide vapor and neon mixture (table).…”