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Reactively dc‐sputtered films of Nb 2 O 5 have very good optical characteristics when prepared under the proper conditions. Substrate preparation, sputtering pressure, gas composition, and deposition power have beem determined which yield films having refractive index from 2.1 to 2.27 and...
We studied the domain structure and the hysteresis loop of amorphous Gd x Fe 1− x alloy films having perpendicular easy axis anisotropy, and found that the domain pattern, just after reversal at the nucleation field, was sparklike where the strip domain diverged radially from one point to all...
Amplification measurements of single‐line and multiline/multiband nanosecond CO 2 laser pulses are reported. It is shown that at amplifier pressures of 600 Torr the saturation energy for multiline pulses is twice as large as for single‐line pulses.
Efficient near‐infrared dye laser emission has been achieved in the 838–923‐nm range by use of a frequency‐doubled Nd:YAG laser as the optical pump for various polymethine dyes. Experimental evidence of 1064‐nm quenching of the dye laser emission is reported. Strong excited state...
Efficient x‐ray sources whose dominant output is from the x‐ray continuum are examined experimentally for use in x‐ray lithography. At 10 kV with a 6‐μm Mylar mask and 50‐μm Be window, a Au continuum source is more than 3 times as efficient as the Al K α source. Submicrometer...
A simple model is presented that describes the enhancement of cw laser melt‐through of opaque solids due to gravitationally induced melt removal. It is shown that a stationary target whose front surface is oriented at an angle from the horizontal may experience significant reduction in...
We have resolved the controversy in the literature concerning the dominant excitation mechanism of the cw mercury ion laser by obtaining the first d i r e c t experimental proof that thermal energy charge transfer is the dominant formation process for the excited 7 p 2 P terms of Hg II which...
To gain insight into the origin of the surface state induced by electron radiation, MOS structures with different oxide thicknesses were irradiated with a 25‐keV electron beam. For a dose of 0.95×10 − 5 C/cm 2 , the surface states increased montonically as the oxide thickness increased from...
3 He 2+ ions from laser‐irradiated 3 He‐filled glass microsphere targets were mass spectroscopically observed only at low velocities consistent with the predictions of hydrodynamic calculations. The null measurements at high velocity indicate that the core gas is largely contained.
We have obtained cw laser oscillation on 23 transitions of Cu II in the blue‐green and near infrared by exciting either a He‐Ar, He‐Ne, or a He‐Xe discharge in a c o p p e r hollow cathode. The Cu II wavelengths range from 4506 to 7988 Å. Output characteristics of the Cu II laser lines...
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