NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2016, 7 (2), P. 384–393
Laser generation without inversion on the fine levels of the helium atom
A. G. Petrashen – ITMO University, 197101, Saint Petersburg, Russia; email@example.com
N.V. Sytenko – ITMO University, 197101, Saint Petersburg, Russia
By using the example of transfer between fine structure levels in the helium atom, the possibility of laser generation without inversion has been studied.
Keywords: coherent exitation, dehsity matrix evolution, dark states.