Large-area enhancement of far-field fluorescence intensity using planar nanostructures | Zendy

M. Nyman | Zendy; Andriy Shevchenko | Zendy; Igor Shavrin | Zendy; Yoichi Ando | Zendy; Klas Lindfors | Zendy; M. Kaivola | Zendy

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Large-area enhancement of far-field fluorescence intensity using planar nanostructures

Author(s) -

M. Nyman,

Andriy Shevchenko,

Igor Shavrin,

Yoichi Ando,

Klas Lindfors,

M. Kaivola

Publication year - 2019

Publication title -

apl photonics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.094

H-Index - 34

ISSN - 2378-0967

DOI - 10.1063/1.5096270

Subject(s) - near and far field , fluorescence , nanostructure , materials science , planar , nanoscopic scale , optoelectronics , polarization (electrochemistry) , near field scanning optical microscope , microscopy , fluorescence microscope , optics , optical microscope , nanotechnology , physics , chemistry , scanning electron microscope , computer science , computer graphics (images) , composite material

While nanoscale local enhancement of fluorescence is a well-studied phenomenon, enhancement of far-field radiation of large-area samples using nanostructures has been explored much less. In this work, we demonstrate planar nanostructures with exceptionally high far-field intensity enhancement factors and in addition show that the enhancement can be made controllable via the polarization state of the pump light. We also find that, counterintuitively, the Purcell effect plays only a small part in the observed far-field enhancement. The results of these studies can be applied, for example, in thin-film optical emitters, fluorescence sensors, and wide-field fluorescence microscopy.

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