High refractive index Fresnel lens on a fiber fabricated by nanoimprint lithography for immersion applications

In this Letter we present a Fresnel lens fabricated on the end of an optical fiber. The lens is fabricated using nanoimprint lithography of a functional high refractive index material, which is suitable for mass production. The main advantage of the presented Fresnel lens compared to a conventional...

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Published inarXiv.org
Main Authors Koshelev, Alexander, Calafiore, Giuseppe, Piña-Hernandez, Carlos, Allen, Frances, Dhuey, Scott, Sassolini, Simone, Wong, Edward, Lum, Paul, Munechika, Keiko, Cabrini, Stefano
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 06.06.2016
Subjects
Adhesion tests
Fresnel lenses
Integrated optics
Lithography
Mass production
Nanotechnology
Optical fibers
Optical trapping
Physics - Instrumentation and Detectors
Physics - Optics
Refractivity
Submerging
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Summary:In this Letter we present a Fresnel lens fabricated on the end of an optical fiber. The lens is fabricated using nanoimprint lithography of a functional high refractive index material, which is suitable for mass production. The main advantage of the presented Fresnel lens compared to a conventional fiber lens is its high refractive index (n=1.69), which enables efficient light focusing even inside other media such as water or adhesive. Measurement of the lens performance in an immersion liquid (n=1.51) shows a near diffraction limited focal spot of 810 nm in diameter at the 1/e2 intensity level for a wavelength of 660 nm. Applications of such fiber lenses include integrated optics, optical trapping and fiber probes.
ISSN:2331-8422
DOI:10.48550/arxiv.1606.02322