Classical theory for second-harmonic generation from metallic nanoparticles

Journal Article · Mon Jun 15 00:00:00 EDT 2009 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.79.235109· OSTI ID:21287031

Yong, Zeng; Jinjie, Liu; Moloney, Jerome V ^[1]; Hoyer, Walter; Koch, Stephan W ^[2]

---

1. Arizona Center for Mathematical Sciences, University of Arizona, Tucson, Arizona 85721 (United States)
2. Department of Physics and Material Sciences Center, Philipps University, Renthof 5, D-35032 Marburg (Germany)

In this paper, we develop a classical electrodynamic theory to study the optical nonlinearities of metallic nanoparticles. The quasi free electrons inside the metal are approximated as a classical Coulomb-interacting electron gas, and their motion under the excitation of an external electromagnetic field is described by the plasma equations. This theory is further tailored to study second-harmonic generation. Through detailed experiment-theory comparisons, we validate this classical theory as well as the associated numerical algorithm. It is demonstrated that our theory not only provides qualitative agreement with experiments but it also reproduces the overall strength of the experimentally observed second-harmonic signals.

• OSTI ID: 21287031
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 79, Issue 23; Other Information: DOI: 10.1103/PhysRevB.79.235109; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
ALGORITHMS
COMPARATIVE EVALUATIONS
ELECTRIC POTENTIAL
ELECTRODYNAMICS
ELECTROMAGNETIC FIELDS
ELECTRON GAS
ELECTRONS
EQUATIONS
EXCITATION
HARMONIC GENERATION
METALS
NANOSTRUCTURES
NONLINEAR PROBLEMS
PARTICLES
PLASMA
POTENTIAL ENERGY
SIMULATION