Global to push GA events into
skip to main content

Title: Photon energy conversion by near-zero permittivity nonlinear materials

Efficient harmonic light generation can be achieved with ultrathin films by coupling an incident pump wave to an epsilon-near-zero (ENZ) mode of the thin film. As an example, efficient third harmonic generation from an indium tin oxide nanofilm (.lamda./42 thick) on a glass substrate for a pump wavelength of 1.4 .mu.m was demonstrated. A conversion efficiency of 3.3.times.10.sup.-6 was achieved by exploiting the field enhancement properties of the ENZ mode with an enhancement factor of 200. This nanoscale frequency conversion method is applicable to other plasmonic materials and reststrahlen materials in proximity of the longitudinal optical phonon frequencies.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1414408
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM) SNL-A
Patent Number(s):
9,846,348
Application Number:
15/040,799
Contract Number:
AC04-94AL85000
Resource Relation:
Patent File Date: 2016 Feb 10
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 30 DIRECT ENERGY CONVERSION

Works referenced in this record:

Singularity-driven second- and third-harmonic generation at ε-near-zero crossing points
journal, December 2011
  • Vincenti, M. A.; de Ceglia, D.; Ciattoni, A.
  • Physical Review A, Vol. 84, Issue 6, Article No. 063826
  • DOI: 10.1103/PhysRevA.84.063826

Harmonic generation in multiresonant plasma films
journal, October 2013
  • Vincenti, M. A.; de Ceglia, D.; Haus, J. W.
  • Physical Review A, Vol. 88, Issue 4, Article No. 043812
  • DOI: 10.1103/PhysRevA.88.043812

Berreman mode and epsilon near zero mode
journal, January 2012
  • Vassant, Simon; Hugonin, Jean-Paul; Marquier, Francois
  • Optics Express, Vol. 20, Issue 21, p. 23971-23977
  • DOI: 10.1364/OE.20.023971

Directional perfect absorption using deep subwavelength low-permittivity films
journal, August 2014
  • Luk, Ting S.; Campione, Salvatore; Kim, Iltai
  • Physical Review B, Vol. 90, Issue 8, Article No. 085411
  • DOI: 10.1103/PhysRevB.90.085411

Electric field enhancement in ɛ-near-zero slabs under TM-polarized oblique incidence
journal, January 2013
  • Campione, Salvatore; de Ceglia, Domenico; Vincenti, Maria Antonietta
  • Physical Review B, Vol. 87, Issue 3, Article No. 035120
  • DOI: 10.1103/PhysRevB.87.035120

Enhanced third harmonic generation from the epsilon-near-zero modes of ultrathin films
journal, April 2015
  • Luk, Ting S.; de Ceglia, Domenico; Liu, Sheng
  • Applied Physics Letters, Vol. 106, Issue 15, Article No. 151103
  • DOI: 10.1063/1.4917457