S. K. Kang

MT-NIRNet: A multi-task deep learning framework for classifying polygonatum origins and varieties based on near-infrared spectroscopy

Q. Y. Zhang, G.H. Hu, Yixiao Xu, S. K. Kang et autres

cn (code pays fourni par la source)

Far infrared measurements on doped GaAs/alGaAs multiple quantum wells

S. K. Kang

A series of GaAs/AlGaAs multiple quantum well (MQW) structures, modulation or antimodulation doped, has been grown by molecular beam epitaxy. The samples were identical apart from the doping, the level of which was varied between 1.5 x 1012 cm-2 and 9 x …

gb (code pays fourni par la source)

Far-infrared investigations of band non-parabolicities in highly doped multiple quantum well structures

S. K. Kang, Thomas Dumelow, J P Bryant, Terence J. Parker et autres

Plasmons have been investigated in highly doped GaAs/Al 0.2 Ga 0.8 As multiple quantum well structures using the far-infrared techniques of dispersive Fourier transform spectroscopy and polarized oblique-incidence reflection spectroscopy. The plasma effective masses were obtained from comparison with van der Pauw …

gb (code pays fourni par la source)

Far infrared measurements on band non-parabolicities in doped multiple quantum well structures

S. K. Kang

The conduction band in quantum well structures splits into subbands due to confinement. This splittingmay make simple assumptions on parabolic subband dispersion inappropriate in doped samples. We haveused far infrared measurements to investigate this phenomenon.

gb (code pays fourni par la source)

Investigation of the electron distributionin CdxHg1-xTe superlattices by far infrared and Raman spectroscopy

S. K. Kang

Far infrared spectroscopy may be used in obtaining characterisation information on superlattices containingfree carriers; such information complements that obtained by Raman spectroscopy. This study makes use ofboth infrared and Raman measurements on CdxHgl_xTe (CMT) superlattice samples.

gb (code pays fourni par la source)

Characterisation of CdTe/CdxHg1-xTe/CdTe heterostructures on GaAs substrates by dispersive Fourier transform spectroscopy

S. K. Kang

We have recently [1] described modifications to an NPL far infrared cube interferometer in which the radiation is brought to a focus in each arm to enable amplitude and phase reflection measurements on small (area > 3x3mm2) solid samples to be made …

gb (code pays fourni par la source)

Reflection dispersive Fourier transform spectroscopy of small solid samples

S. K. Kang

An NPL far infrared cube interferometer has been modified to bring the beam to a focus in each arm for measurements on small samples (≥ 3mm diameter) by reflection dispersive Fourier transform spectroscopy (DFTS). The performance of the instrument will be demonstrated …

gb (code pays fourni par la source)