Photonic Jet by a Near-Unity-Refractive-Index Sphere on a Dielectric Substrate with High Index Contrast

Liyang Yue, Bing Yan, James N. Monks, Rakesh Dhama, Zengbo Wang, Oleg V. Minin, Igor V. Minin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Photonic jets are normally generated in transmission mode and are represented as a spatially localized high-intensity region on the shadow side of a particle-lens, with a background to medium refractive index contrast of 1.3–1.7 while illuminated by a plane wave. Here, a photonic jet is discovered in the opposing plane wave propagation direction and lies in the area in the upper boundary of a near-unity refractive index sphere on a high refractive index dielectric substrate. The redistribution of the power flow is inhibited during the reflected wave passing the near-unity refractive index sphere. This has led to a unique effect on the focus position and shape of the produced photonic jet in reflection mode which can be maximally maintained near the sphere regardless of the modulation of the refractive index for the dielectric substrate material.

Original languageEnglish
Article number1800032
JournalAnnalen der Physik
Volume530
Issue number6
DOIs
Publication statusPublished - 1 Jun 2018

Fingerprint

unity
photonics
refractivity
plane waves
reflected waves
wave propagation
lenses
modulation

Keywords

  • near-field optics
  • particle-lens
  • refractive-index-contrast
  • scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Photonic Jet by a Near-Unity-Refractive-Index Sphere on a Dielectric Substrate with High Index Contrast. / Yue, Liyang; Yan, Bing; Monks, James N.; Dhama, Rakesh; Wang, Zengbo; Minin, Oleg V.; Minin, Igor V.

In: Annalen der Physik, Vol. 530, No. 6, 1800032, 01.06.2018.

Research output: Contribution to journalArticle

Yue, Liyang ; Yan, Bing ; Monks, James N. ; Dhama, Rakesh ; Wang, Zengbo ; Minin, Oleg V. ; Minin, Igor V. / Photonic Jet by a Near-Unity-Refractive-Index Sphere on a Dielectric Substrate with High Index Contrast. In: Annalen der Physik. 2018 ; Vol. 530, No. 6.
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