3-DIMENSIONAL WAVE-FRONT IMAGING BY NEAR-FIELD SCANNING OPTICAL MICROSCOPY

被引:8
作者
LEVY, J
COHEN, A
AWSCHALOM, DD
机构
[1] Department of Physics, University of California, Santa Barbara
关键词
D O I
10.1063/1.1145512
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We have designed a near-field scanning optical microscope head compatible with an existing commercial scanning probe system. Near-field images of coherent scattering from a 500 nm fused silica grating are collected in transmission mode as a function of tip-sample separation, wavelength, and incident polarization. The images are compared with numerical simulations of scattering using both scalar wave and vector dipole approximations. The simulations suggest that the procedure can be inverted, allowing one to measure the dielectric constant ε(x,y,z) of an embedded three-dimensional object using information obtained in the near field. © 1995 American Institute of Physics.
引用
收藏
页码:3385 / 3387
页数:3
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