Affiliation: | a Institute of Electronics Engineering, National Tsing Hua University, Hsin-Chu, 300, Taiwan, R.O.C. b Department of Physics and Institute of Electro-Optical Engineering, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan, R.O.C. c Department of Photonics and Display Institute, National Chiao Tung University, Hsin-Chu, 300, Taiwan, R.O.C. d Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, 70 Lien-hai Rd., Kaohsiung, 300, Taiwan, R.O.C. e National Nano Device Laboratory, 1001-1 Ta-Hsueh Rd., Hsin-Chu, 300, Taiwan, R.O.C. |