Suppression of laser induced amplified spontaneous emission between the f 0g+ (3P0) and D 0u+

Energy Transfer in the 2u (1D2) Ion-Pair State of I2 by Inelastic Collisions with Noble Gas Atoms

“…The generation of ASE between the excited states, so far reported on a few molecular systems like NO and NH 3 , requires an inversion of population between the upper and lower states for light amplification, which, in turn, provided us with a unique way of controlling the population transfer between the relevant states through on/off of the population inversion. 9 As such, due to the coexistence of such novel processes with the rather classical behavior like spontaneous emission (fluorescence) and collisional energy transfer, the ion-pair states offer a benchmark for the dynamics in the charge-separated excited states. It is important to note here that the dynamic behavior sensitively depends on the individual ion-pair states, which motivated the present state-to-state study in order to obtain a more detailed picture for the energy dissipation processes.…”

“…This property has been used for the isotope separation of 35 Cl and 37 Cl. , From our recent study on the ion-pair excited states of homonuclear halogen molecules, − we successfully identified the coexistence of an optical process called amplified spontaneous emission (ASE) with fluorescence. The generation of ASE between the excited states, so far reported on a few molecular systems like NO and NH 3 , requires an inversion of population between the upper and lower states for light amplification, which, in turn, provided us with a unique way of controlling the population transfer between the relevant states through on/off of the population inversion . As such, due to the coexistence of such novel processes with the rather classical behavior like spontaneous emission (fluorescence) and collisional energy transfer, the ion-pair states offer a benchmark for the dynamics in the charge-separated excited states.…”