Quantifying local density of optical states of nanorods by fluorescence lifetime imaging

Jing Liu, Xunpeng Jiang, Satoshi Ishii, Vladimir Shalaev, Joseph Irudayaraj

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Engineering of quantum emissions is regarded as the heart of nano-optics and photonics; local density of optical states (LDOS) around the quantum emitters are critical to engineer quantum emissions, thus detection of the LDOS will impact areas related to illumination, communication, energy, and even quantum-informatics. In this report, we demonstrated a far-field approach to detect and quantify the near-field LDOS of a nanorod via using CdTe quantum dots (QDs) tethered to the surface of nanorods as beacons for optical read-outs. The spontaneous decay of QD emission in the proximity of nanorod was used as a ruler for elucidating the LDOS. Our analysis indicates that the LDOS of the nanorod at its ends is 2.35 times greater than that at the waist. Our approach can be applied for further evaluation and elucidation of the optical states of other programmed nanostructures.

Original languageEnglish (US)
Title of host publicationSingle Molecule Spectroscopy and Superresolution Imaging VII
PublisherSPIE
ISBN (Print)9780819498632
DOIs
StatePublished - Jan 1 2014
Externally publishedYes
EventSingle Molecule Spectroscopy and Superresolution Imaging VII - San Francisco, CA, United States
Duration: Feb 1 2014Feb 2 2014

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8950
ISSN (Print)1605-7422

Other

OtherSingle Molecule Spectroscopy and Superresolution Imaging VII
CountryUnited States
CitySan Francisco, CA
Period2/1/142/2/14

Keywords

  • Fluorescence Lifetime Imaging Microscopy (FLIM)
  • Local Density of Optical States (LDOS)
  • Nanorod
  • Quantum Dots (QDs)
  • Single Particle Mapping

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

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  • Cite this

    Liu, J., Jiang, X., Ishii, S., Shalaev, V., & Irudayaraj, J. (2014). Quantifying local density of optical states of nanorods by fluorescence lifetime imaging. In Single Molecule Spectroscopy and Superresolution Imaging VII [89501E] (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 8950). SPIE. https://doi.org/10.1117/12.2040210