Author: Jane Doe
Last saved by: home
Company: photonics

Specialization: 010700/03 Condensed Matter Physics
Program: 23 Photonics of heterogeneous systems and condensed matter 
Program director: prof. V.K.Ryabchuk
Department of Photonics
Scientific advisors: Ph.D. S.A.Poretsky, prof. A.M.Pravilov
Reviewer:: prof. V.B.Sovkov

Spectroscopic constants and RKR potential of the I_2(0^+_g) (I(^2P_1/2)+ I(^2P_1/2)) valence state
Baturo Vera

New method of determination of energy of rovibronic levels of the I_2() valence state correlating with third dissociation limit of the valence states, I(^2P_1/2)+ I(^2P_1/2), designated as (bb), has been developed. The method is based on a three-color three-step excitation of  ion-pair state 

and collision induced population of , v’_0, J’_0 state rovibronic levels from the optically populated, v_0, J_0 ones. This method was applied for determination of energy of the rovibronic levels in the range of v_0=0-16, J_0≤76 and Rydberg-Klein-Rees potential of the state.

Luminescence excitation spectra of I_2(,v_D, J_D) via 0^+_g, v_0=0-16, J_0≤76 were measured and analyzed. The G_v value and rovibronic level energy dependences on the rotational quantum number J were determined for each v_0. Then the spectroscopic constants and RKR potential were calculated.

The following conclusions can be made on basis of the work:
1.	 New method of determination of spectroscopic constants of the I_2()(bb) valence state has been developed.
2.	 Spectroscopic constants of I_2()(bb) valence state have been determined and RKR potential has been calculated. The data obtained significantly improve those received in previous works.

The list of the publications
1.	M.E. Akopyan, V.V. Baturo, S.S. Lukashov, S.A. Poretsky and A.M. Pravilov. Dipole moment functions of the iodine D'2_g - A'2_u, D0^+_u → a' 0^+_g, D0^+_u → X0^+_g and E0^+g → B0^+_u transitions// Journal of Physics B: Atomic, Molecular and Optical Physics, 44, 205101 (2011)

2.	 M.E.Akopyan, V.V.Baturo, S.S.Lukashov, S.A.Poretsky and A.M.Pravilov. Non-adiabatic transitions from I2(E0^+_g and D0^+_u) states induced by collisions with M = I2(X0^+_g) and H_2O// Journal of Chemical Physics, 136, 234302 (2012).