Now showing items 31-40 of 43
X-ray scattering and absorption studies of epitaxial strains in Co-Au superlattices
(Elsevier, 1991-02)
X-ray scattering and EXAFS are used to probe epitaxial strain in Co-Au superlattices grown by molecular beam epitaxy. We observe a thickness-dependent strain in ultrathin cobalt layers and find that tensile strains near ...
The surface evolution and kinetic roughening during homoepitaxy of GaAs (001)
(Elsevier, 1994)
Scanning tunneling microscopy studies have been performed on GaAs homoepitaxial films grown by molecular-beam epitaxy. Images show that in the earliest stages of deposition the morphology oscillates between one with ...
Transient Decay of Longitudinal Magnetization in Heterogeneous Spin Systems under Selective Saturation. IV. Reformulation of the Spin-Bath-Model Equations by the Redfield-Provotorov Theory
(Elsevier, 1994-01)
Alternative formulations to the conventional Bloch equations for the RF saturation of the solid component in heterogeneous spin systems according to a spin-bath model are derived using the concept of spin temperature as ...
Optoelectronic properties of (001) and (111) lattice-matched and strained quantum wire lasers--comparison with quantum well lasers
(Elsevier, 1994)
We investigate the optoelectronic properties of GaAs wires along the [001] and [111] directions for a range of cross sections and compare these with the corresponding parameters for optimized quantum wells. The relative ...
Removal of dispersive baseline distortions caused by strong water signals
(Elsevier, 1991-02-01)
Morphological transformations based on optical symbolic substitution and polarization-encoded optical shadow-casting systems
(Elsevier, 1991-05-01)
By conbining two powerful optical computing techniques, namely, optical symbolic substitution (OSS) and polarization-encoded optical shadow-casting (POSC), morphological or shape transformation operations are demonstrated. ...
Logical equivalence of optical symbolic substitution and shadow-casting schemes
(Elsevier, 1992-07-01)
The logical equivalence between two powerful optical computing techniques, namely, optical symbolic substitution and optical shadow-casting is investigated. A common basis for both schemes is developed and their roots are ...
Ultrahigh-bandwidth vector network analyzer based on external electro-optic sampling
(Elsevier, 1992-03)
We report the development of an ultrahigh-bandwidth vector network analyzer useful for small-signal characterization of high-speed semiconductor devices. It employs 100-fs optical pulses for making terahertz-bandwidth ...
Transient Decay of Longitudinal Magnetization in Heterogeneous Spin Systems Under Selective Saturation. III. Solution by Projection Operators
(Elsevier, 1993-10-01)
A general method of solving equations governing the transient response of heterogeneous spin systems to continuous and pulsed RF saturation using the projection-operator technique is outlined. An effective rate equation ...