Photonic nanojet-induced modes: fundamentals and applications

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

doi:10.1117/12.909716

1 February 2012 Photonic nanojet-induced modes: fundamentals and applications

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

Proceedings Volume 8264, Integrated Optics: Devices, Materials, and Technologies XVI; 82640X (2012) https://doi.org/10.1117/12.909716
Event: SPIE OPTO, 2012, San Francisco, California, United States

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.

Citation Download Citation

Arash Darafsheh, Anatole Lupu, S. Adam Burand, Thomas C. Hutchens, Nathaniel M. Fried, and Vasily N. Astratov "Photonic nanojet-induced modes: fundamentals and applications", Proc. SPIE 8264, Integrated Optics: Devices, Materials, and Technologies XVI, 82640X (1 February 2012); https://doi.org/10.1117/12.909716

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available