Calculations on Nonlinear Optical Properties for Large Systems: The Elongation Method

ISBN-13: 9783319110677 / Angielski / Miękka / 2014 / 93 str.

Yuriko Aoki; Feng Long Gu; Michael Springborg

Opis

For design purposes one needs to relate the structure of proposed materials to their NLO (nonlinear optical) and other properties, which is a situation where theoretical approaches can be very helpful in providing suggestions for candidate systems that subsequently can be synthesized and studied experimentally. This brief describes the quantum-mechanical treatment of the response to one or more external oscillating electric fields for molecular and macroscopic, crystalline systems. To calculate NLO properties of large systems, a linear scaling generalized elongation method for the efficient and accurate calculation is introduced. The reader should be aware that this treatment is particularly feasible for complicated three-dimensional and/or delocalized systems that are intractable when applied to conventional or other linear scaling methods.

Spis treści

Survey of Nonlinear Optical Materials.- Quantum-Mechanical Treatment of Responses to Electric Fields — Molecular Systems.- Quantum-Mechanical Treatment of Responses to Electric Fields — Extended Systems.- The Elongation Method.- Applications of the Elongation Method to NLO Properties.- Future Prospects.