Photonic Jet by a Near‐Unity‐Refractive‐Index Sphere on a Dielectric Substrate with High Index Contrast
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In: Annalen der Physik, Vol. 530, No. 6, 1800032, 06.2018.
Research output: Contribution to journal › Article › peer-review
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T1 - Photonic Jet by a Near‐Unity‐Refractive‐Index Sphere on a Dielectric Substrate with High Index Contrast
AU - Yue, Liyang
AU - Yan, Bing
AU - Monks, James
AU - Dhama, Rakesh
AU - Wang, Zengbo
AU - Minin, Oleg
AU - Minin, Igor
PY - 2018/6
Y1 - 2018/6
N2 - Photonic jets are normally generated in transmission mode and arerepresented as a spatially localized high-intensity region o n the shadow sideof a particle-lens, with a background to medium refractive index contrast of1.3–1.7 while illuminated by a plane wave. Here, a photonic jet is discoveredin the opposing plane wave propagation direction and lies in the area in theupper boundary of a near-unity refractive index sphere on a high refractiveindex dielectric substrate. The redistribution of the power flow is i nhibitedduring the reflected wave passing the near-unity refractive index sphere. Thishas led to a unique effect on the focus position and shape of the producedphotonic jet in reflection mode which can be maximally maintained near thesphere regardless of the modulation of the refractive index for the dielectricsubstrate material.
AB - Photonic jets are normally generated in transmission mode and arerepresented as a spatially localized high-intensity region o n the shadow sideof a particle-lens, with a background to medium refractive index contrast of1.3–1.7 while illuminated by a plane wave. Here, a photonic jet is discoveredin the opposing plane wave propagation direction and lies in the area in theupper boundary of a near-unity refractive index sphere on a high refractiveindex dielectric substrate. The redistribution of the power flow is i nhibitedduring the reflected wave passing the near-unity refractive index sphere. Thishas led to a unique effect on the focus position and shape of the producedphotonic jet in reflection mode which can be maximally maintained near thesphere regardless of the modulation of the refractive index for the dielectricsubstrate material.
U2 - 10.1002/andp.201800032
DO - 10.1002/andp.201800032
M3 - Article
VL - 530
JO - Annalen der Physik
JF - Annalen der Physik
SN - 1521-3889
IS - 6
M1 - 1800032
ER -