Abstract
A middle infrared imaging technique combining sequential heating and cooling of the material is shown to detect internal defects in composite materials. A low power flash lamp is used as the...
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Uploaded: Publication Date: May 2006
Abstract
The carrier recombination rate in GaAs-AlGaAs single quantum well layers is investigated using a small-signal technique for carrier densities from 1017 to 1019/cm3. For carrier densities up ...
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Uploaded: Publication Date: May 1990
Abstract
Multiquantum dot (MQD) layers of CdSe with ZnxCdyMg1-x-ySe barriers have been grown by self-assembly (SA) using molecular beam epitaxy on (001) InP substrates and their optical and structura...
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Uploaded: Publication Date: May 2006
Abstract
Multiquantum dot (MQD) layers of CdSe with ZnxCdyMg1-x-ySe barriers have been grown by self-assembly (SA) using molecular beam epitaxy on (001) InP substrates and their optical and structura...
Rating: Views: (2002)
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Uploaded: Publication Date: May 2006
Abstract
The finite size of the focal spot of an x-ray tube produces a penumbra in x-ray images. Optical spatial-filtering techniques are being developed to compensate for penumbral effects in medica...
Rating: Views: (2001)
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Uploaded: Publication Date: Jan 1970
Abstract
Room temperature photoluminescence of p–i–n InGaAsP/InP multiple quantum well heterostructures was investigated under different excitation intensities. Photoluminescence spectra show the eff...
Abstract
Room temperature photoluminescence of p–i–n InGaAsP/InP multiple quantum well heterostructures was investigated under different excitation intensities. Photoluminescence spectra show the eff...
Abstract
A device for applying compressive uniaxial stress has been developed to fit within the pickup coils of a SQUID magnetometer. Forces of up to 300 N may be applied from liquid-helium temperatu...
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Uploaded: Publication Date: Jan 1985