Theory of plasmon-enhanced high-order harmonic generation in the vicinity of metal nanostructures in noble gases

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.043839· OSTI ID:21544725

Husakou, A; Im, S -J; Herrmann, J ^[1]

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1. Max Born Institute of Nonlinear Optics and Short Pulse Spectroscopy, Max Born Strasse 2a, D-12489 Berlin (Germany)

We present a semiclassical model for plasmon-enhanced high-order harmonic generation (HHG) in the vicinity of metal nanostructures. We show that, besides the field enhancement, both the inhomogeneity of the enhanced local fields and electron absorption by the metal surface play an important role in the HHG process and lead to the generation of even harmonics and a significantly increased cutoff. For the examples of silver-coated nanocones and bowtie antennas, we predict that the required intensity reduces by up to three orders of magnitude due to plasmonic field enhancement. The study of the enhanced high-order harmonic generation is connected with a finite-element simulation of the electric field enhancement due to the excitation of the plasmonic modes.

• OSTI ID: 21544725
• Journal Information: Physical Review. A, Vol. 83, Issue 4; Other Information: DOI: 10.1103/PhysRevA.83.043839; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
ANTENNAS
ELECTRIC FIELDS
ELECTRONS
EXCITATION
FINITE ELEMENT METHOD
HARMONIC GENERATION
NANOSTRUCTURES
PLASMONS
RARE GASES
SEMICLASSICAL APPROXIMATION
SILVER
APPROXIMATIONS
CALCULATION METHODS
ELECTRICAL EQUIPMENT
ELEMENTARY PARTICLES
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EQUIPMENT
FERMIONS
FLUIDS
FREQUENCY MIXING
GASES
LEPTONS
MATHEMATICAL SOLUTIONS
METALS
NONMETALS
NUMERICAL SOLUTION
QUASI PARTICLES
SORPTION
TRANSITION ELEMENTS