The intrinsic thermodynamical factors that dominate the stability of nanocrystallines are investigated through the microcosmic process of grain growth.The resul
A novel two-wafer concept for micro-electro-mechanically tunable vertical cavity surface emitting lasers (VCSELs) is presented.The VCSEL is composed by two wafe
A 1342-nm oscillator was successfully demonstrated by using a semiconductor saturable absorber mirror with the repetition rate of 65 MHz.The output coupler with
Ta2O5 films are deposited on fused silica substrates by electron beam evaporation method.The optical property,x-ray photoelectron spectroscopy,band gap and nano