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 | |
| Publication status | Published - 2017 Jan 16 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Nanoscale optical thermometry using a time-correlated single-photon counting in an illumination-collection mode. / Seto, Daichi; Nikka, Ren; Nishio, Shogo; Taguchi, Yoshihiro; Saiki, Toshiharu; Nagasaka, Yuji.
In: Applied Physics Letters, Vol. 110, No. 3, 033109, 16.01.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nanoscale optical thermometry using a time-correlated single-photon counting in an illumination-collection mode
AU - Seto, Daichi
AU - Nikka, Ren
AU - Nishio, Shogo
AU - Taguchi, Yoshihiro
AU - Saiki, Toshiharu
AU - Nagasaka, Yuji
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.
AB - 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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U2 - 10.1063/1.4974451
DO - 10.1063/1.4974451
M3 - Article
AN - SCOPUS:85009965887
VL - 110
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 3
M1 - 033109
ER -