Size and dielectric environment effects on the plasmonenhanced third-order nonlinearity in gold nanoparticles

Eraliyeva, Y.M., Sapaev, U.K.

O‘zbekiston fizika jurnali · 2026-yil

Annotatsiya

We present a systematic theoretical investigation of third-order nonlinear optical effects enhancement in spherical gold nanoparticles within the quasi-static approximation. The dielectric response of gold is described using a Drude model. Local field enhancement and nonlinear amplification scaling as () 4 L E are calculated for nanoparticle radii R=10−60 нм embedded inair (εm=1.0) and glass (εm=2.25). For particles with R=30 нм, the local field enhancementreaches max L ≈6.5 in air and ≈11 in glass, corresponding to nonlinear enhancement factors4 L ≈1.9×103and 1.5×104, respectively. Increasing particle size reduces surface-scatteringlosses and increases the nonlinear response, with a maximum enhancement ∼3.0×104obtainedfor particles R=60 нм in glass. The results quantitatively demonstrate the combined influenceof nanoparticle size and dielectric environment on plasmon-enhanced nonlinear response within the validity range of the quasi-static approximation. The predicted effective third-orders usceptibility reaches (3) 15 2 2 10 m /V , eff− χ ∼ representing approximately four orders of magnitudeenhancement compared to bulk gold.

Maqola ma’lumotlari
MualliflarEraliyeva, Y.M., Sapaev, U.K.
JurnalO‘zbekiston fizika jurnali
NashriyotЎзбекистон Республикаси Фанлар академияси
ISSN1025-8817, 2181-077X
Nashr sanasi2026-08-04
Jild28
Son2
TilIngliz
Ilmiy sohaFizika-matematika
DOI10.52304/.v28i2.646
Indeksga qo‘shilgan2026-08-26

DOI: 10.52304/.v28i2.646 · Maqolaning asl sahifasi

Kalit so‘zlar

поверхностный плазмонный резонанс, наночастицы золота, нелинейность 3-его порядка, усиление локального поля, модель Друде, квазистатическое приближение, затухание, surface plasmon resonance, gold nanoparticles, third-order nonlinear-ity, local field enhancement, Drude model, quasi-static approximation, size-dependent damping

Ilmiy soha

Fizika-matematika

Iqtibos keltirish

APAEraliyeva, Y.M., & Sapaev, U.K. (2026). Size and dielectric environment effects on the plasmonenhanced third-order nonlinearity in gold nanoparticles. O‘zbekiston fizika jurnali, 28(2). https://doi.org/10.52304/.v28i2.646
GOST (OAK)Eraliyeva, Y.M., Sapaev, U.K. Size and dielectric environment effects on the plasmonenhanced third-order nonlinearity in gold nanoparticles // O‘zbekiston fizika jurnali. – 2026. – T. 28, № 2. – DOI: 10.52304/.v28i2.646.
MLAEraliyeva, Y.M., and Sapaev, U.K. “Size and dielectric environment effects on the plasmonenhanced third-order nonlinearity in gold nanoparticles.” O‘zbekiston fizika jurnali, 28(2), 2026. https://doi.org/10.52304/.v28i2.646
ChicagoEraliyeva, Y.M., and Sapaev, U.K. “Size and dielectric environment effects on the plasmonenhanced third-order nonlinearity in gold nanoparticles.” O‘zbekiston fizika jurnali, 28(2) (2026). https://doi.org/10.52304/.v28i2.646
HarvardEraliyeva, Y.M., and Sapaev, U.K (2026) ‘Size and dielectric environment effects on the plasmonenhanced third-order nonlinearity in gold nanoparticles’, O‘zbekiston fizika jurnali, 28(2). https://doi.org/10.52304/.v28i2.646
BibTeX
@article{eraliyevaym2026,
  title = {Size and dielectric environment effects on the plasmonenhanced third-order nonlinearity in gold nanoparticles},
  author = {Eraliyeva, Y.M. and Sapaev, U.K.},
  journal = {O‘zbekiston fizika jurnali},
  year = {2026},
  volume = {28},
  number = {2},
  doi = {10.52304/.v28i2.646},
  url = {https://doi.org/10.52304/.v28i2.646}
}

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