Development of nanoscale thermometry by fluorescence lifetime measurement in near-field using time correlated single photon counting

Daichi Seto, Yoshihiro Taguchi, Toshiharu Saiki, Yuji Nazasaka

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

Abstract

A novel noncontact and nanoscale temperature measurement method using fluorescence in near-field, namely Fluor-NOTN (Fluorescence Near-field Optics Thermal Nanoscopy) has been developed. Fluor-NOTN enables to detect the temperature dependence of fluorescence lifetime of CdSe quantum dots (Qdot) at nanoscale spatial resolution. In our case, however, the spatial resolution is limited by the sensitivity of the optical system. This paper reports the feasibility study of a proposed TCSPC (Time Correlated Single Photon Counting) to enhance the temperature measurement sensitivity of Fluor-NOTN. The experimental result indicated that Fluor-NOTN using TCSPC can measure the near-field fluorescence lifetime with 60 nm spatial resolution.

Original languageEnglish
Title of host publication2014 International Conference on Optical MEMS and Nanophotonics, OMN 2014 - Proceedings
PublisherIEEE Computer Society
Pages77-78
Number of pages2
ISBN (Electronic)9780992841423
DOIs
Publication statusPublished - 2014 Oct 14
Event2014 International Conference on Optical MEMS and Nanophotonics, OMN 2014 - Glasgow, United Kingdom
Duration: 2014 Aug 172014 Aug 21

Publication series

NameInternational Conference on Optical MEMS and Nanophotonics
ISSN (Print)2160-5033
ISSN (Electronic)2160-5041

Other

Other2014 International Conference on Optical MEMS and Nanophotonics, OMN 2014
CountryUnited Kingdom
CityGlasgow
Period14/8/1714/8/21

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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  • Cite this

    Seto, D., Taguchi, Y., Saiki, T., & Nazasaka, Y. (2014). Development of nanoscale thermometry by fluorescence lifetime measurement in near-field using time correlated single photon counting. In 2014 International Conference on Optical MEMS and Nanophotonics, OMN 2014 - Proceedings (pp. 77-78). [6924601] (International Conference on Optical MEMS and Nanophotonics). IEEE Computer Society. https://doi.org/10.1109/OMN.2014.6924601