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Quantum theoretical approach to a near‐field optical system
Author(s) -
Kobayashi K.,
Ohtsu M.
Publication year - 1999
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1046/j.1365-2818.1999.00545.x
Subject(s) - virtual particle , quantum , yukawa potential , physics , field (mathematics) , projection (relational algebra) , operator (biology) , excitation , statistical physics , photon , sample (material) , quantum mechanics , theoretical physics , computer science , mathematics , algorithm , chemistry , biochemistry , repressor , thermodynamics , transcription factor , pure mathematics , gene
The paper proposes a quantum theoretical formulation of an optical near‐field system based on the projection‐operator method. Special attention is paid to a nanometric probe tip–quantum mechanical sample system, whose interactions are essential for describing such phenomena as atom guidance and manipulation, or local excitation of a single quantum dot. The relationship to the virtual photon model − an intuitive model − is discussed, and the latter's empirical assumption of the Yukawa‐type interaction between probe and sample is justified theoretically. Several applications of the theory are briefly outlined.