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The dielectric polarization theory for ionic conduction at high fields is shown to predict a decrease in the measured ac film capacitance for an increase in the dc ion current, contrary to the assertion of Dell'Oca and Young.
The optical absorption and electron spin resonance of atomic defects in rf‐sputtered SiO 2 films have been measured. The properties of the centers are similar to those produced when pure, fused SiO 2 is bombarded with neutrons.
A hologram is made by a CO 2 ☒N 2 ☒He laser utilizing the thermal bleaching of organic photochromic films and is reconstructed by a 6328 Å He☒Ne laser beam. These films are made of photochromic spiropirans dissolved into plastics.
The alternate application of two orthogonal linear polarizations of light to YIG(Si) leads to cyclic elongation and contraction. This effect was observed at liquid‐helium temperatures, and is related to the recently reported photoinduced magnetic anisotropy and dichroism.
Lamellar eutectic InSb + Sb films were grown by electron beam microzone crystallization. The Sb lamellae within the InSb matrix constitute a grating which acts as an infrared polarizer beyond the InSb absorption edge. The spectral dispersion of the transmittance of such polarizers between 2 and...
We present the results of a computer design study for an iron‐free double‐focusing magnetic spectrometer specifically intended for photoelectron spectroscopy. With single detector operation the proposed design is more efficient than any existing magnetic double‐focusing spectrometer, and...
Evidence for the existence of transverse waves in detonating liquid explosives is presented. The technique utilized is analogous to the smoked‐foil technique used in gaseous detonation studies.
A totally localized solution of the wave equation in a nonlinear dielectric is discussed. The spatial region in which the field is concentrated has the shape of a torus. The solution is never completely stable, but under suitable conditions the lifetime of the trapped radiation can be extremely...
The discovery of two new passive Q ‐switching agents for use in the CO 2 laser is reported. These gases, chlorotrifluoroethylene and difluorodichloromethane, permit extension of the range of wavelengths over which the passively Q ‐switched CO 2 laser can be operated. Saturation intensities...
The resistive critical field of severely drawn Nb increases far beyond the predictions of the GLAG theory for a homogeneous type‐II superconductor and becomes anisotropic. Although no model fits the situation exactly, nucleation of superconductivity at dislocation cell walls is a possible...
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