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The peak electron density in e‐beam‐excited rare‐gas plasmas has been studied as a function of pressure, using inverse bremsstrahlung absorption techniques. It was found that the heavier rare gases exhibit broad maxima beyond which the peak electron density decreases monotonically with...
We have obtained multiple‐shock compression of a gas by the application of a tailored power pulse. Density increases well beyond the compression of a single strong shock were reached. No second shock could be launched if the second power step exceeded the first one by a factor of 10.
We present an analysis of optically pumping Rydberg states in alkalis to generate coherent lasers in the infrared and far‐infrared spectral regions. Based on the previous accurate experimental and theoretical data on these states, our conclusion is that such laser systems can be operated either...
Laser oscillation has been observed on the 2 Σ + 1/2 ‐ 2 Σ + 1/2 band of KrCl at 222 nm in an electron‐beam‐excited mixture of argon, krypton, and chlorine. The laser performance and spectral features of KrCl and KrF are compared.
Temperature‐dependent structure in the photoenhancement of nonlinear surface‐acoustic‐wave convolution on ZnO is reported. Measurements of the temperature dependence of surface‐wave convolution without light, thermally stimulated conductivity, and photoconductivity suggest that the...
The depth distribution of oxygen recoils from As implantation was studied by employing MOS surface state techniques. Arsenic was implanted into an SiO 2 film on Si such that the recoil oxygen reached the silicon interface. By varying oxide thickness, the depth distribution could be determined....
Explosion pressures for multiatmosphere mixtures of H 2 , F 2 , and O 2 have been obtained. Mixtures exhibiting short‐term stability have been prepared with total pressures up to 11 atm.
The first operation of a cw CO chemical laser delivering nearly 1 W of power oscillation on the 1→0 vibrational band is reported. Experimental results and operating details with respect to 1→0 emission are discussed. Optical pumping of CO by the CO chemical laser is also reported; optically...
It has been reported recently that the short‐circuit current I sc of silicon Schottky‐barrier solar cell increases with increasing operating temperature. The increase in I sc has been attributed to the availability of extra photons, belonging to the long‐wavelength range of the solar...
We report unexpectedly low‐loss optical transmission at 10.6 μm through a 1‐m‐long hollow rectangular metallic waveguide bent through 90° in a 50‐cm radius of curvature. This demonstrates that flexible infrared‐transmissive (FIT) waveguides can deliver CO 2 laser power to targets...
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