Nanoscale optical thermometry using a time-correlated single-photon counting in an illumination-collection mode

Daichi Seto; Ren Nikka; Shogo Nishio; Yoshihiro Taguchi; Toshiharu Saiki; Yuji Nagasaka

doi:10.1063/1.4974451

Nanoscale optical thermometry using a time-correlated single-photon counting in an illumination-collection mode

Daichi Seto, Ren Nikka, Shogo Nishio, Yoshihiro Taguchi, Toshiharu Saiki, Yuji Nagasaka

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A nanoscale thermometry method called fluorescence near-field optics thermal nanoscopy (Fluor-NOTN) has been developed using near-field fluorescence imaging. This method can detect local temperature distributions with a nanoscale spatial resolution by measuring the fluorescence lifetimes of Cd/Se quantum dots (QDs) as a temperature probe. To increase the sensitivity of Fluor-NOTN, time-correlated single-photon counting (TCSPC) was introduced with a triple-tapered fusion-spliced near-field (TFN) optical fiber probe. This highly sensitive technique for measuring the fluorescence lifetime of QDs enabled the detection of low-level light signals with a picosecond time resolution at high-precision in an illumination-collection mode for Fluor-NOTN. The feasibility of this proposed method was experimentally verified by measuring the temperature dependence of the fluorescence lifetimes of the QDs by Fluor-NOTN using TCSPC with a TFN optical fiber probe with an aperture of 70 nm.

Original language	English
Article number	033109
Journal	Applied Physics Letters
Volume	110
Issue number	3
DOIs	https://doi.org/10.1063/1.4974451
Publication status	Published - 2017 Jan 16

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Nanoscale optical thermometry using a time-correlated single-photon counting in an illumination-collection mode",

abstract = "A nanoscale thermometry method called fluorescence near-field optics thermal nanoscopy (Fluor-NOTN) has been developed using near-field fluorescence imaging. This method can detect local temperature distributions with a nanoscale spatial resolution by measuring the fluorescence lifetimes of Cd/Se quantum dots (QDs) as a temperature probe. To increase the sensitivity of Fluor-NOTN, time-correlated single-photon counting (TCSPC) was introduced with a triple-tapered fusion-spliced near-field (TFN) optical fiber probe. This highly sensitive technique for measuring the fluorescence lifetime of QDs enabled the detection of low-level light signals with a picosecond time resolution at high-precision in an illumination-collection mode for Fluor-NOTN. The feasibility of this proposed method was experimentally verified by measuring the temperature dependence of the fluorescence lifetimes of the QDs by Fluor-NOTN using TCSPC with a TFN optical fiber probe with an aperture of 70 nm.",

author = "Daichi Seto and Ren Nikka and Shogo Nishio and Yoshihiro Taguchi and Toshiharu Saiki and Yuji Nagasaka",

note = "Funding Information: This research was partially supported by the JSPS KAKENHI Grant Nos. JP24226006 and JP15H03934. In addition, a part of this research was conducted by the Keio University satellite-center of the ?Low-Carbon Research Network? funded by the Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan.",

year = "2017",

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doi = "10.1063/1.4974451",

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AU - Seto, Daichi

AU - Nikka, Ren

AU - Nishio, Shogo

AU - Taguchi, Yoshihiro

AU - Saiki, Toshiharu

AU - Nagasaka, Yuji

N1 - Funding Information: This research was partially supported by the JSPS KAKENHI Grant Nos. JP24226006 and JP15H03934. In addition, a part of this research was conducted by the Keio University satellite-center of the ?Low-Carbon Research Network? funded by the Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan.

PY - 2017/1/16

Y1 - 2017/1/16

N2 - A nanoscale thermometry method called fluorescence near-field optics thermal nanoscopy (Fluor-NOTN) has been developed using near-field fluorescence imaging. This method can detect local temperature distributions with a nanoscale spatial resolution by measuring the fluorescence lifetimes of Cd/Se quantum dots (QDs) as a temperature probe. To increase the sensitivity of Fluor-NOTN, time-correlated single-photon counting (TCSPC) was introduced with a triple-tapered fusion-spliced near-field (TFN) optical fiber probe. This highly sensitive technique for measuring the fluorescence lifetime of QDs enabled the detection of low-level light signals with a picosecond time resolution at high-precision in an illumination-collection mode for Fluor-NOTN. The feasibility of this proposed method was experimentally verified by measuring the temperature dependence of the fluorescence lifetimes of the QDs by Fluor-NOTN using TCSPC with a TFN optical fiber probe with an aperture of 70 nm.

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