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A manganese vapor laser utilizing manganese chloride as a lasant has been observed and investigated. Lasing is attained by means of two consecutive electrical discharges. The maximum laser output is obtained at a vapor pressure of about 3 torr, a temperature of 680 C, and a time delay between electrical discharges of 150 microsec. The maximum energy density is 1.3 microjoule per cu cm.

A copper vapor laser utilizing copper chloride as a lasant in a heated discharge tube has been studied. The lasing action was observed only when two successive discharge current pulses at suitable time intervals were applied. The first pulse is considered to be a dissociation pulse to produce copper and chlorine atoms; the second to be a pumping pulse to produce population inversion. The maximum energy density measured to date was 17 microjoule/cu cm.

Measurement of the Raman scattering cross section for N2O4 at a Raman shift of 7.3 micron, using a Q-switched ruby laser as an excitation source. The cross section for N2 at a Raman shift of 4.3 micron was also measured and compared with the value given by Leonard (1970).

Transition probabilities for Ar I, using Coulomb approximation values of radial wave function integral

Time delay in pulsed optical carbon dioxide laser pumping mechanism in high current gaseous discharge

Gaseous neon plasma positive column electrons density and drift velocities measurements by Langmuir probe technique

Electron energy loss per collision in Cs vapor discharge, measuring electric field and electron temperature by Langmuir probes

Collisional radiative electron-ion recombination rates measured in decaying rare gas plasmas produced by transient discharge

Melting ablation for two dimensional and axisymmetric blunt bodies with body force, predicting gas-liquid interface temperature for free stream conditions

Temperature dependence of dissociative recombination and molecular ion formation in decaying He, Ne and Ar plasmas in discharge tube energized with capacitor bank

Low temperature simulation of hypersonic melting ablation and wave patterns of gas-liquid interface

Partition of recombination energy among electrons and radiation in decaying rare gas plasmas

Plasma flow velocity profile measurement by electrostatic probe detection of plasma drop caused by gas breakdown due to focused giant pulse laser

Experimental evidence of inverse bremsstrahlung and electron-impact ionization in low pressure argon ionized by giant pulse laser

Ionization phenomena in argon due to laser radiation by measuring electron density and energy as time function after laser pulse initiation at different gas pressures and preionized conditions

Anomalous diffusion and instabilities of argon plasma in strong magnetic field

Continuum intensity for electron-ion recombination in nonequilibrium plasma

Temperature effects on work function of langmuir probe immersed in argon plasma in discharge tube

Gas recombination effects on supersonic plasma arc jet nozzle flow