This three level configuration may provide the basis for an amplifying medium in the vaccum ultraviolet, as well as multiphoton adiabatic passage and inner ionization.
Mean dipole in the excited states of an atom
A transition dipole moment between excited states (with energies close enough to each other) must be nonzero.
The time evolution of the system is found using a non-perturbative reasonant approach.
By the appopiate optical pulses with moderate strong internsities — >superposition states and multiphoton reasonnt excitation
http://www.phys.uconn.edu/~gibson/presentations.html
DAMOP: Alignment, Houston, TX (2010)
DAMOP: Ultraslow Diss., Houston, TX (2010)
Stevens Institute, Hoboken, NJ (2009)
DAMOP, Charlottesville, VA (2009)
Cross Border Workshop XI, Ottawa, Canada (2009)
Laser Physics, Barcelona, Spain (2009)
