Title: Quantum Theoretical Approach to Optical Near-Fields and Some Related Applications
Abstract: Several theoretical approaches, different from their viewpoints to optical near-field problems, have been proposed for a decade. The essential points in difference are related to what the optical near-field interaction is, or how materials respond to light confined in a small area less than the wavelength. The so-called classical approach that is based on the macroscopic Maxwell equations extends the theory to describe electromagnetic phenomena taking place on a-sub wavelength or even on a nanometer scale, while matter response to the electromagnetic field is represented by a macroscopic refractive index or a dielectric constant. The main concern in this approach is to find field distributions around the material system after solving the macroscopic Maxwell equations. Note that the electromagnetic fields in or near the material, are averaged over a large dimension, but still smaller than the wavelength, satisfy the macroscopic Maxwell equations, and that the "bare" electromagnetic fields on a nanometer scale should be governed by the microscopic Maxwell equations [1]. A number of analytical and numerical methods have been reported in order to obtain the relevant electromagnetic fields [2,3].
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
Access and Citation
Cited By Count: 13
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