The structural and luminescence properties of nanocrystalline ZrO2 :Er3+ films are reported. Transparent nanoZrO2 crystalline films doped with Er3+ have been pr
Optical feedback characteristics in He-Ne dual frequency lasers are studied systematically in different feedback power ratios with a variable attenuator. Feedba
A novel 10-period SiC/AlN multilayered structure with a SiC cap layer is prepared by low pressure chemical vapour deposition (LPCVD). The structure with total S
AlGaAs/InGaAs high electron mobility transistors (HEMTs) and AlAs/GaAs resonant tunnelling diodes (RTDs) are integrated on GaAs substrates. Molecular beam epita