M. Schott - Institut des NanoSciences de Paris
L.C. Lin - Institute of Physics , National Chiao Tung University
H.F. Meng - Institute of Physics , National Chiao Tung University
J.T. Shy - Department of Physics , National Tsing Hua University
S.F. Horng - Department of Physics , National Tsing Hua University
L.S. Yu - Department of Physics , National Tsing Hua University
C.H. Chen - Institute of Physics , National Chiao Tung University
H.H. Liaw - Institute of Physics , National Chiao Tung University
C.C. Huang - Institute of Physics , National Chiao Tung University
K.Y. Peng - Department of Physics , National Tsing Hua University
S.A. Chen - Department of Physics , National Tsing Hua University