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Bond models in linear and nonlinear optics
Author(s) -
Aspnes D. E.
Publication year - 2010
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200983937
Subject(s) - nonlinear system , charge (physics) , reflection symmetry , nonlinear optics , physics , tensor (intrinsic definition) , symmetry (geometry) , theoretical physics , reflection (computer programming) , harmonic , statistical physics , field (mathematics) , bond , second harmonic generation , optics , quantum mechanics , computer science , mathematics , geometry , finance , pure mathematics , economics , programming language , laser
Atomic‐scale descriptions of linear‐optical properties such as reflection are nearly a century old, but surprisingly, analogous models describing nonlinear‐optical (NLO) properties as the natural dynamic response of bond charges driven by an external field are a recent development. These bond‐charge models have proven to be particularly useful in describing the relevant physics of second‐, third‐, and fourth‐harmonic generation, identifying previously unrecognized contributions to NLO responses, and uncovering well‐disguised correlations in tensor parameters determined phenomenologically from symmetry conditions. Current capabilities are discussed, and opportunities for improved understanding noted.