Photonic nanojet-induced modes: Fundamentals and applications

Arash Darafsheh; Anatole Lupu; S. A. Burand; Thomas C. Hutchens; Nathaniel M. Fried; Vasily N. Astratov

doi:10.1117/12.909716

Photonic nanojet-induced modes: Fundamentals and applications

Arash Darafsheh, Anatole Lupu, S. A. Burand, Thomas C. Hutchens, Nathaniel M. Fried, Vasily N. Astratov

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

10 Scopus citations

Abstract

Photonic nanojet-induced modes (NIMs) have emerged as a new paradigm for understanding the optical properties of chains of dielectric microspheres with wavelength-scale diameters (D≤10λ). Here we show that light focusing and transport properties of chains of submillimeter spheres (D>100λ) are dominated by periodically focused modes (PFMs) which can be considered a geometrical optics analog of NIMs. We review recent geometrical optics results on this subject showing that Brewster angle conditions for TM polarized rays can be periodically reproduced in chains of spheres with index n= √3 =1.73205... giving rise to lossless PFMs with the 2D period. In this work we studied the phase properties of PFMs using a novel method based on Fourier analysis of the high resolution transmission spectra of chains of submillimeter ruby spheres with n∼1.75 at λ=1.2 μm. We demonstrated that PFMs are the best surviving modes in long chains of spheres. Finally, we considered applications of PFMs for focusing multimodal beams in ultra-precise laser surgery.

Original language	English (US)
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Volume	8264
DOIs	https://doi.org/10.1117/12.909716
State	Published - 2012
Externally published	Yes
Event	Integrated Optics: Devices, Materials, and Technologies XVI - San Francisco, CA, United States Duration: Jan 23 2012 → Jan 25 2012

Other

Other	Integrated Optics: Devices, Materials, and Technologies XVI
Country/Territory	United States
City	San Francisco, CA
Period	1/23/12 → 1/25/12

Keywords

focusing
laser surgery
microlens
microoptics
microspheres
optical microprobes
photonic nanojet

ASJC Scopus subject areas

Applied Mathematics
Computer Science Applications
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1117/12.909716

Cite this

Darafsheh, A, Lupu, A, Burand, SA, Hutchens, TC, Fried, NM & Astratov, VN 2012, Photonic nanojet-induced modes: Fundamentals and applications. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 8264, 82640X, Integrated Optics: Devices, Materials, and Technologies XVI, San Francisco, CA, United States, 1/23/12. https://doi.org/10.1117/12.909716

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abstract = "Photonic nanojet-induced modes (NIMs) have emerged as a new paradigm for understanding the optical properties of chains of dielectric microspheres with wavelength-scale diameters (D≤10λ). Here we show that light focusing and transport properties of chains of submillimeter spheres (D>100λ) are dominated by periodically focused modes (PFMs) which can be considered a geometrical optics analog of NIMs. We review recent geometrical optics results on this subject showing that Brewster angle conditions for TM polarized rays can be periodically reproduced in chains of spheres with index n= √3 =1.73205... giving rise to lossless PFMs with the 2D period. In this work we studied the phase properties of PFMs using a novel method based on Fourier analysis of the high resolution transmission spectra of chains of submillimeter ruby spheres with n∼1.75 at λ=1.2 μm. We demonstrated that PFMs are the best surviving modes in long chains of spheres. Finally, we considered applications of PFMs for focusing multimodal beams in ultra-precise laser surgery.",

keywords = "focusing, laser surgery, microlens, microoptics, microspheres, optical microprobes, photonic nanojet",

author = "Arash Darafsheh and Anatole Lupu and Burand, {S. A.} and Hutchens, {Thomas C.} and Fried, {Nathaniel M.} and Astratov, {Vasily N.}",

year = "2012",

doi = "10.1117/12.909716",

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AU - Lupu, Anatole

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AU - Hutchens, Thomas C.

AU - Fried, Nathaniel M.

AU - Astratov, Vasily N.

PY - 2012

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AB - Photonic nanojet-induced modes (NIMs) have emerged as a new paradigm for understanding the optical properties of chains of dielectric microspheres with wavelength-scale diameters (D≤10λ). Here we show that light focusing and transport properties of chains of submillimeter spheres (D>100λ) are dominated by periodically focused modes (PFMs) which can be considered a geometrical optics analog of NIMs. We review recent geometrical optics results on this subject showing that Brewster angle conditions for TM polarized rays can be periodically reproduced in chains of spheres with index n= √3 =1.73205... giving rise to lossless PFMs with the 2D period. In this work we studied the phase properties of PFMs using a novel method based on Fourier analysis of the high resolution transmission spectra of chains of submillimeter ruby spheres with n∼1.75 at λ=1.2 μm. We demonstrated that PFMs are the best surviving modes in long chains of spheres. Finally, we considered applications of PFMs for focusing multimodal beams in ultra-precise laser surgery.

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KW - microlens

KW - microoptics

KW - microspheres

KW - optical microprobes

KW - photonic nanojet

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ER -

Photonic nanojet-induced modes: Fundamentals and applications

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