Asymmetry of Optical Transmission Spectra of a Pulsed Discharge with an Extended Hollow Cathode During Resonance Interaction of Short Polychromatic Laser Pulses with Excited Neon Atoms

The processes of resonant interaction of short pulses of dye laser polychromatic radiation with plasma of a nanosecond discharge in neon with an extended hollow cathode are experimentally studied. Dispersion-type asymmetric optical transmission spectra of the plasma near the spectral absorption line of Ne I with a wavelength of 650.6 nm are detected during propagation of the laser radiation inside the cathode cavity while classical symmetric transmission spectra are formed during propagation of the laser radiation in the region between the electrodes.