TY - JOUR
T1 - Influence of ZnO nanorod morphology on optical confinement-finite- difference time-domain numerical simulation study
AU - Kim, Jihye
AU - Lee, Geon Joon
AU - Park, Inkyu
AU - Lee, Young Pak
PY - 2011/8
Y1 - 2011/8
N2 - We studied the influence of nanorod (NR) morphology on the optical confinement. In order to understand the optical field confinement by the ZnO NR, we obtained the spatial intensity distribution inside/outside the NR by solving Maxwell equations using the finite-difference time-domain numerical simulation. The hexagonal cylinder-shaped NR exhibits a strong confinement and the circular cylinder-shaped NR shows also similar confinement effect. Meanwhile, the rectangular cylindershaped NR, the tapered NR, and the NR with sharp cone show a weak confinement of optical field as compared to that of the hexagonal cylinder-shaped NR. Next, as the rod length and/or the rod diameter increase, the high intensity region increases. This suggests that longer nanorod will exhibit more efficient lasing action.
AB - We studied the influence of nanorod (NR) morphology on the optical confinement. In order to understand the optical field confinement by the ZnO NR, we obtained the spatial intensity distribution inside/outside the NR by solving Maxwell equations using the finite-difference time-domain numerical simulation. The hexagonal cylinder-shaped NR exhibits a strong confinement and the circular cylinder-shaped NR shows also similar confinement effect. Meanwhile, the rectangular cylindershaped NR, the tapered NR, and the NR with sharp cone show a weak confinement of optical field as compared to that of the hexagonal cylinder-shaped NR. Next, as the rod length and/or the rod diameter increase, the high intensity region increases. This suggests that longer nanorod will exhibit more efficient lasing action.
KW - Finite-difference time-domain
KW - Spatial intensity distribution
KW - ZnO nanorods
UR - http://www.scopus.com/inward/record.url?scp=84863011166&partnerID=8YFLogxK
U2 - 10.1166/jnn.2011.4852
DO - 10.1166/jnn.2011.4852
M3 - Article
AN - SCOPUS:84863011166
SN - 1533-4880
VL - 11
SP - 7238
EP - 7241
JO - Journal of Nanoscience and Nanotechnology
JF - Journal of Nanoscience and Nanotechnology
IS - 8
ER -