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

Markus Nyman, Andriy Shevchenko, Igor Shavrin, Yoichi Ando, Klas Lindfors, Matti Kaivola

Research output: Contribution to journalArticleScientificpeer-review

121 Downloads (Pure)

Abstract

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.

Original languageEnglish
Article number076101
Pages (from-to)1-8
JournalAPL Photonics
Volume4
Issue number7
DOIs
Publication statusPublished - 1 Jul 2019
MoE publication typeA1 Journal article-refereed

Fingerprint Dive into the research topics of 'Large-area enhancement of far-field fluorescence intensity using planar nanostructures'. Together they form a unique fingerprint.

  • Equipment

    OtaNano

    Anna Rissanen (Manager)

    Aalto University

    Facility/equipment: Facility

  • Cite this