Linear and nonlinear tunable optical properties of intersubband transitions in GaN/AlN quantum dots in presence and absence of wetting layerA. Khaledi-Nasab, M. Sabaeian, M. Rezaie and M. Mohammad-RezaeeJ. Eur. Opt. Soc.-Rapid Publ., 9 (2014) 14011DOI: https://doi.org/10.2971/jeos.2014.14011