TY - JOUR
T1 - Field enhancement effect of metal probe in evanescent field
AU - Hong, Xiaogang
AU - Xu, Wendong
AU - Li, Xiaogang
AU - Zhao, Chengqiang
AU - Tang, Xiaodong
PY - 2009/1
Y1 - 2009/1
N2 - Field enhancement effect of metal probe in evanescent field, induced by using a multi-layers structure for exciting surface plasmon resonance (SPR), is analyzed numerically by utilizing two-dimensional (2D) TM-wave finite difference time-domain (FDTD) method. In this letter, we used a fundamental mode Gaussian beam to induce evanescent field, and calculated the electric intensity. The results show that compared with the nonmetal probe, the metal probe has a larger field enhancement effect, and its scattering wave induced by field enhancement has a bigger decay coefficient. The field enhancement effect should conclude that the metal probe has an important application in nanolithography.
AB - Field enhancement effect of metal probe in evanescent field, induced by using a multi-layers structure for exciting surface plasmon resonance (SPR), is analyzed numerically by utilizing two-dimensional (2D) TM-wave finite difference time-domain (FDTD) method. In this letter, we used a fundamental mode Gaussian beam to induce evanescent field, and calculated the electric intensity. The results show that compared with the nonmetal probe, the metal probe has a larger field enhancement effect, and its scattering wave induced by field enhancement has a bigger decay coefficient. The field enhancement effect should conclude that the metal probe has an important application in nanolithography.
UR - https://www.scopus.com/pages/publications/60149091534
U2 - 10.3788/COL20090701.0074
DO - 10.3788/COL20090701.0074
M3 - 文章
AN - SCOPUS:60149091534
SN - 1671-7694
VL - 7
SP - 74
EP - 77
JO - Chinese Optics Letters
JF - Chinese Optics Letters
IS - 1
ER -