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viii<br />

Contents<br />

4.2.1 Electronic Absorption Spectrum 180<br />

4.2.2 Vibrational Contributions 182<br />

4.3 Photophysics 184<br />

4.3.1 Semiclassical Description of Internal<br />

Conversion and Inter-System Crossing 187<br />

4.4 Computational Methods for Excited States 190<br />

4.4.1 Configuration Interaction 194<br />

4.4.2 Time-Dependent Density Functional<br />

Theory 196<br />

4.4.3 Linear Response TD-DFT 200<br />

5 Metal–Molecule Electrodynamic Coupling 213<br />

S. Corni<br />

5.1 Introduction 213<br />

5.2 The Quasi-Static Limit 217<br />

5.3 The Point-Dipole Model of the Molecule, and the<br />

Classical Metal Nanoparticle 219<br />

5.3.1 Light Absorption 220<br />

5.3.2 Light Emission 225<br />

5.3.3 Light Scattering 234<br />

5.3.4 The Dielectric Function of the Classical Metal<br />

Nanoparticle 237<br />

5.4 Toward an ab initio Molecular Plasmonics 243<br />

5.4.1 Coupling the ab-initio Description of the<br />

Molecule with a Continuous Metal 243<br />

5.4.2 Fully ab initio Description of the<br />

Molecule–Metal Nanoparticle Systems 246<br />

PART II<br />

APPLICATIONS AND EXPERIMENTAL ASPECTS<br />

6 Near-Fields in Assembled Plasmonic Nanostructures 261<br />

P. K. Jain and C. Deeb<br />

6.1 Introduction 262<br />

6.2 Optical Properties of Metal Nanoparticles 262<br />

6.2.1 Nanoplasmonic Field Enhancement 265<br />

6.2.2 Tunability of the LSPR and Near-Field 266<br />

6.3 Optical Properties of Coupled Nanoparticles 268<br />

6.3.1 Nanoparticle Assemblies 268

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