  Switching anisotropic molecules from strongly-absorbing to
strongly-amplifying through a transparent state is shown to be possible by
application of dc or ac control electric fields without the requirement of the
population inversion. It is based on decoupling of the lower-level molecules
from the resonant light while the excited ones remain emitting due to their
state-dependent alignment. The amplification index may become dependent only on
a number of excited molecules and not on the population of the lower state. A
suitable class of molecules and applications in optoelectronics, fiberoptics
and nanophotonics are outlined.
