Optical, magnetic, and transport properties of two-dimensional III-nitride semiconductors (AlN, GaN, and InN) due to acoustic phonon scattering.

In this paper, the magneto-optical transport (MOT) properties of III-nitride Pöschl-Teller quantum well (QW) semiconductors, including AlN, GaN, and InN, resulting from the acoustic phonon interaction are thoroughly investigated and compared by applying the technique of operator projection. In particular, a comparison is made between the Pöschl-Teller QW results and the square QW ones. The findings demonstrate that the MOT properties of III-nitride QW semiconductors resulting from acoustic phonon scattering are strongly influenced by the quantum system (QS) temperature, applied magnetic field, and QW width.

The effect of MnCO on the gain coefficient for the I → I transition of Er ions and near-infrared emission bandwidth flatness of Er/Tm/Yb co-doped barium zinc silicate glasses.

The roles of Mn ions in the MnCO compound, leading to the formation of an Mn-Yb dimer and affecting the gain coefficient for the I → I transition of Er ions and near-infrared (NIR) emission bandwidth flatness of Er/Tm/Yb co-doped in SiO-ZnO-BaO (SZB) barium zinc silicate glasses, were investigated in this work. The composition of all elements from the original raw materials that exist in the host glasses was determined using energy-dispersive X-ray spectroscopy (EDS). Under the excitation of a 980 nm laser diode (LD), the NIR emission of Er/Tm/Yb-co-doped SZB glasses produced a bandwidth of about 430 nm covering the O, E, and C bands.

Optical band gaps and spectroscopy properties of Bi /Eu /Yb co-doped ( = 0, 2, 3; and = 2, 3) zinc calcium silicate glasses.

In this study, the indirect/direct optical band gaps and spectroscopy properties of Bi /Eu /Yb co-doped ( = 0, 2, 3; and = 2, 3) zinc calcium silicate glasses under different excitation wavelengths were investigated. Zinc calcium silicate glasses with the main compositions of SiO-ZnO-CaF-LaF-TiO were prepared by the conventional melting method. EDS analysis was performed to determine the elemental composition existing in the zinc calcium silicate glasses.

Influences of copper-potassium ion exchange process on the optical bandgaps and spectroscopic properties of Cr/Yb co-doped in lanthanum aluminosilicate glasses.

In this study, lanthanum aluminosilicate glasses with compositions of 45SiO-20AlO-12.5LaF-10BaF-9KO-1CrO-2.5YbO (SALBK) were prepared using the conventional melting method and copper-potassium ion exchange process.