Influence of the photonic nanojet of microspheres on microsphere imaging

Optics Express
Songlin YangYurong Cao

Abstract

The imaging properties of BaTiO3 glass (BTG) microspheres in the diameter range of 5-50 µm which are fully immersed in a polydimethylsiloxane layer are experimentally studied. Our experimental results show that for both Blu-ray disc samples and the single-layer hexagonally close-packed microsphere array samples, with the increase of the diameter of BTG microspheres, the range of focal image positions (RFIP) increases linearly. When the diameter of BTG microspheres increases from 5 to 50 μm, the RFIP changes from 4 to 25 μm. For the microsphere array samples, Talbot effect is observed, and both the position of Talbot images and the Talbot distance depend on the diameter of BTG microspheres. Numerical simulations indicate that the length of the photonic nanojet changes from 2.9 to 7.1 μm when the BTG microsphere size increases from 5 to 50 μm, and the calculated RFIP is between 6 and 24 μm. The calculated RFIPs match well with the experimental ones. Our researches reveal that the RFIP depends on the length of the photonic nanojet of the BTG microsphere.

References

Jun 12, 2008·Optics Express·Patrick FerrandHervé Rigneault
Sep 6, 2008·Optics Express·Alexis DevilezEvgueni Popov
Mar 3, 2011·Nature Communications·Zengbo WangMinghui Hong
Jun 7, 2011·Optics Express·Myun-Sik KimHans Peter Herzig
Jan 19, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Ran YeHuanhuan Xu
Feb 8, 2013·Optics Express·Hanming GuoSonglin Zhuang
Oct 10, 2013·Optics Letters·Yubo DuanBaile Zhang
Dec 23, 2014·Optics Letters·Arash DarafshehAlejandro Cárabe
Oct 22, 2016·PloS One·Hok Sum Sam LaiWen Jung Li
Aug 10, 2017·Optics Express·Gergely HuszkaMartin A M Gijs

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