Effect of intraresonator absorption on the characteristics of a dyestuff laser with forced mode synchronization

Abstract

It is well-known that theintroduction into the resonator of a broadband dyestuff laser of an absorber with a line spectrum leads to the formation in the laser emission spectrum of gaps at frequencies corresponding to absorption lines [i]. This effect forms the basis of measurements of weak absorptions and the indication of small amounts of a substance by the method of intraresonator spectroscopy. Until recently, pulsed dyestuff lasers with laser and lamp pumping, as well as continuous lasers [2-4], have been used for the purpose of intraresonator spectroscopy.