Abstract
At present three main mechanisms of optical propagation with periodically focused modes in the chains of dielectric spherical particles with a refractive index near n [Formula presented] 1.59 are considered in the literature: evanescent whispering gallery mode coupling, photonic nanojet-induced modes, and the propagation of transverse magnetic modes under conditions close to Brewster angle geometry. In this paper we show that quasi-periodical focusing modes exist in a range of near unity refractive indices for chains of dielectric particles in both spherical and cubic forms. We also show that such a medium can be considered a gradient index waveguide with a parabolic law of refractive index variation.
| Original language | English |
|---|---|
| Pages (from-to) | 110-117 |
| Number of pages | 8 |
| Journal | Optics Communications |
| Volume | 434 |
| DOIs | |
| Publication status | Published - 1 Mar 2019 |
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Keywords
- Mesoscale particle
- Periodical focusing mode
- Photonic jet
- Refractive index
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering
Cite this
Periodical focusing mode achieved through a chain of mesoscale dielectric particles with a refractive index near unity. / Liu, Cheng Yang; Minin, Oleg V.; Minin, Igor V.
In: Optics Communications, Vol. 434, 01.03.2019, p. 110-117.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Periodical focusing mode achieved through a chain of mesoscale dielectric particles with a refractive index near unity
AU - Liu, Cheng Yang
AU - Minin, Oleg V.
AU - Minin, Igor V.
PY - 2019/3/1
Y1 - 2019/3/1
N2 - At present three main mechanisms of optical propagation with periodically focused modes in the chains of dielectric spherical particles with a refractive index near n [Formula presented] 1.59 are considered in the literature: evanescent whispering gallery mode coupling, photonic nanojet-induced modes, and the propagation of transverse magnetic modes under conditions close to Brewster angle geometry. In this paper we show that quasi-periodical focusing modes exist in a range of near unity refractive indices for chains of dielectric particles in both spherical and cubic forms. We also show that such a medium can be considered a gradient index waveguide with a parabolic law of refractive index variation.
AB - At present three main mechanisms of optical propagation with periodically focused modes in the chains of dielectric spherical particles with a refractive index near n [Formula presented] 1.59 are considered in the literature: evanescent whispering gallery mode coupling, photonic nanojet-induced modes, and the propagation of transverse magnetic modes under conditions close to Brewster angle geometry. In this paper we show that quasi-periodical focusing modes exist in a range of near unity refractive indices for chains of dielectric particles in both spherical and cubic forms. We also show that such a medium can be considered a gradient index waveguide with a parabolic law of refractive index variation.
KW - Mesoscale particle
KW - Periodical focusing mode
KW - Photonic jet
KW - Refractive index
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UR - http://www.scopus.com/inward/citedby.url?scp=85056166087&partnerID=8YFLogxK
U2 - 10.1016/j.optcom.2018.10.044
DO - 10.1016/j.optcom.2018.10.044
M3 - Article
VL - 434
SP - 110
EP - 117
JO - Optics Communications
JF - Optics Communications
SN - 0030-4018
ER -