In this introduction we will give a qualitative discussion of the problem of stabilization of semiconductor surfaces. 1.1 Atomically Clean Surfaces Fig.
We report the synthesis and characterization of Sr sub 2 YCu sub (3-x) M sub x O sub y, M=Al, Pb, Fe, and Co, analogues of the 92K superconducting perovskite, Ba sub 2 YCu sub 3 O sub 7.
The effects of small amounts of Zr substitution for Ti in the low loss, low temperature coefficient dielectric material Ca5Nb2TiO12 are reported.
W i t h i n t h e p a s t few y e a r s digital lightwave c o m m u n i c a t i o n s y s t e m s h a v e b e c o m e a p r a c t i c a l reality.
D UE TO advances in vacuum tube development and amplifier technique, it is now possible to secure any desired amplification of the electrical waves used in the communication field.
The author presents a mathematical consideration of the conditions which insure constant frequency of the vacuum tube oscillator under changes of electrode potentials or of the cathode temperature.
A cubic nonlinear Schrodinger equation (NLS) with periodically varying dispersion coefficient, as it arises in the context of fiber-optics communication, is considered.
In the soliton laser, feedback from a pulse-shaping fiber enables the production of ultrafast pulses of controlled shape and width.
We report stable Al sub (65) Cu sub (15) Co sub (20) decagonal quasicrystals which exhibit facetted columnar morphology.
The alphaH-factor behavior with current is investigated in a 1.52 mum InAs/InP (311B) QD laser.
