Abstract
Achieving efficient photon upconversion under low irradiance is not only a fundamental challenge but also central to numerous advanced applications spanning from photovoltaics to biophotonics. However, to date, almost all approaches for upconversion luminescence intensification require stringent controls over numerous factors such as composition and size of nanophosphors. Here, we report the utilization of dielectric microbeads to significantly enhance the photon upconversion processes in lanthanide-doped nanocrystals. By modulating the wavefront of both excitation and emission fields through dielectric superlensing effects, luminescence amplification up to 5 orders of magnitude can be achieved. This design delineates a general strategy to converge a low-power incident light beam into a photonic hotspot of high field intensity, while simultaneously enabling collimation of highly divergent emission for far-field accumulation. The dielectric superlensing-mediated strategy may provide a major step forward in facilitating photon upconversion processes toward practical applications in the fields of photobiology, energy conversion, and optogenetics.
| Original language | English (US) |
|---|---|
| Article number | 1391 |
| Journal | Nature communications |
| Volume | 10 |
| Issue number | 1 |
| DOIs | |
| State | Published - Dec 1 2019 |
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ASJC Scopus subject areas
- Chemistry(all)
- Biochemistry, Genetics and Molecular Biology(all)
- Physics and Astronomy(all)
Cite this
Upconversion amplification through dielectric superlensing modulation. / Liang, Liangliang; Teh, Daniel B.L.; Dinh, Ngoc Duy; Chen, Weiqiang; Chen, Qiushui; Wu, Yiming; Chowdhury, Srikanta; Yamanaka, Akihiro; Sum, Tze Chien; Chen, Chia Hung; Thakor, Nitish V; All, Angelo Homayoun; Liu, Xiaogang.
In: Nature communications, Vol. 10, No. 1, 1391, 01.12.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Upconversion amplification through dielectric superlensing modulation
AU - Liang, Liangliang
AU - Teh, Daniel B.L.
AU - Dinh, Ngoc Duy
AU - Chen, Weiqiang
AU - Chen, Qiushui
AU - Wu, Yiming
AU - Chowdhury, Srikanta
AU - Yamanaka, Akihiro
AU - Sum, Tze Chien
AU - Chen, Chia Hung
AU - Thakor, Nitish V
AU - All, Angelo Homayoun
AU - Liu, Xiaogang
PY - 2019/12/1
Y1 - 2019/12/1
N2 - Achieving efficient photon upconversion under low irradiance is not only a fundamental challenge but also central to numerous advanced applications spanning from photovoltaics to biophotonics. However, to date, almost all approaches for upconversion luminescence intensification require stringent controls over numerous factors such as composition and size of nanophosphors. Here, we report the utilization of dielectric microbeads to significantly enhance the photon upconversion processes in lanthanide-doped nanocrystals. By modulating the wavefront of both excitation and emission fields through dielectric superlensing effects, luminescence amplification up to 5 orders of magnitude can be achieved. This design delineates a general strategy to converge a low-power incident light beam into a photonic hotspot of high field intensity, while simultaneously enabling collimation of highly divergent emission for far-field accumulation. The dielectric superlensing-mediated strategy may provide a major step forward in facilitating photon upconversion processes toward practical applications in the fields of photobiology, energy conversion, and optogenetics.
AB - Achieving efficient photon upconversion under low irradiance is not only a fundamental challenge but also central to numerous advanced applications spanning from photovoltaics to biophotonics. However, to date, almost all approaches for upconversion luminescence intensification require stringent controls over numerous factors such as composition and size of nanophosphors. Here, we report the utilization of dielectric microbeads to significantly enhance the photon upconversion processes in lanthanide-doped nanocrystals. By modulating the wavefront of both excitation and emission fields through dielectric superlensing effects, luminescence amplification up to 5 orders of magnitude can be achieved. This design delineates a general strategy to converge a low-power incident light beam into a photonic hotspot of high field intensity, while simultaneously enabling collimation of highly divergent emission for far-field accumulation. The dielectric superlensing-mediated strategy may provide a major step forward in facilitating photon upconversion processes toward practical applications in the fields of photobiology, energy conversion, and optogenetics.
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U2 - 10.1038/s41467-019-09345-0
DO - 10.1038/s41467-019-09345-0
M3 - Article
C2 - 30918264
AN - SCOPUS:85063475286
VL - 10
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 1391
ER -