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Title: Continuous-wave upconverting nanoparticle microlasers

Abstract

Reducing the size of lasers to microscale dimensions enables new technologies 1 that are specifically tailored for operation in confined spaces ranging from ultra-high-speed microprocessors 2 to live brain tissue 3. However, reduced cavity sizes increase optical losses and require greater input powers to reach lasing thresholds. Multiphoton-pumped lasers 4,5,6,7 that have been miniaturized using nanomaterials such as lanthanide-doped upconverting nanoparticles (UCNPs) 8 as lasing media require high pump intensities to achieve ultraviolet and visible emission and therefore operate under pulsed excitation schemes. Here, we make use of the recently described energy-looping excitation mechanism in Tm 3+-doped UCNPs 9 to achieve continuous-wave upconverted lasing action in stand-alone microcavities at excitation fluences as low as 14 kW cm -2. Continuous-wave lasing is uninterrupted, maximizing signal and enabling modulation of optical interactions 10. By coupling energy-looping nanoparticles to whispering-gallery modes of polystyrene microspheres, we induce stable lasing for more than 5 h at blue and near-infrared wavelengths simultaneously. These microcavities are excited in the biologically transmissive second near-infrared (NIR-II) window and are small enough to be embedded in organisms, tissues or devices. The ability to produce continuous-wave lasing in microcavities immersed in blood serum highlights practical applications of these microscale lasers formore » sensing and illumination in complex biological environments.« less

Authors:
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Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1574385
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
Nature Nanotechnology
Additional Journal Information:
Journal Volume: 13; Journal Issue: 7; Journal ID: ISSN 1748-3387
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English

Citation Formats

Fernandez-Bravo, Angel, Yao, Kaiyuan, Barnard, Edward S., Borys, Nicholas J., Levy, Elizabeth S., Tian, Bining, Tajon, Cheryl A., Moretti, Luca, Altoe, M. Virginia, Aloni, Shaul, Beketayev, Kenes, Scotognella, Francesco, Cohen, Bruce E., Chan, Emory M., and Schuck, P. James. Continuous-wave upconverting nanoparticle microlasers. United States: N. p., 2018. Web. doi:10.1038/s41565-018-0161-8.
Fernandez-Bravo, Angel, Yao, Kaiyuan, Barnard, Edward S., Borys, Nicholas J., Levy, Elizabeth S., Tian, Bining, Tajon, Cheryl A., Moretti, Luca, Altoe, M. Virginia, Aloni, Shaul, Beketayev, Kenes, Scotognella, Francesco, Cohen, Bruce E., Chan, Emory M., & Schuck, P. James. Continuous-wave upconverting nanoparticle microlasers. United States. https://doi.org/10.1038/s41565-018-0161-8
Fernandez-Bravo, Angel, Yao, Kaiyuan, Barnard, Edward S., Borys, Nicholas J., Levy, Elizabeth S., Tian, Bining, Tajon, Cheryl A., Moretti, Luca, Altoe, M. Virginia, Aloni, Shaul, Beketayev, Kenes, Scotognella, Francesco, Cohen, Bruce E., Chan, Emory M., and Schuck, P. James. Mon . "Continuous-wave upconverting nanoparticle microlasers". United States. https://doi.org/10.1038/s41565-018-0161-8.
@article{osti_1574385,
title = {Continuous-wave upconverting nanoparticle microlasers},
author = {Fernandez-Bravo, Angel and Yao, Kaiyuan and Barnard, Edward S. and Borys, Nicholas J. and Levy, Elizabeth S. and Tian, Bining and Tajon, Cheryl A. and Moretti, Luca and Altoe, M. Virginia and Aloni, Shaul and Beketayev, Kenes and Scotognella, Francesco and Cohen, Bruce E. and Chan, Emory M. and Schuck, P. James},
abstractNote = {Reducing the size of lasers to microscale dimensions enables new technologies1 that are specifically tailored for operation in confined spaces ranging from ultra-high-speed microprocessors2 to live brain tissue3. However, reduced cavity sizes increase optical losses and require greater input powers to reach lasing thresholds. Multiphoton-pumped lasers4,5,6,7 that have been miniaturized using nanomaterials such as lanthanide-doped upconverting nanoparticles (UCNPs)8 as lasing media require high pump intensities to achieve ultraviolet and visible emission and therefore operate under pulsed excitation schemes. Here, we make use of the recently described energy-looping excitation mechanism in Tm3+-doped UCNPs9 to achieve continuous-wave upconverted lasing action in stand-alone microcavities at excitation fluences as low as 14 kW cm-2. Continuous-wave lasing is uninterrupted, maximizing signal and enabling modulation of optical interactions10. By coupling energy-looping nanoparticles to whispering-gallery modes of polystyrene microspheres, we induce stable lasing for more than 5 h at blue and near-infrared wavelengths simultaneously. These microcavities are excited in the biologically transmissive second near-infrared (NIR-II) window and are small enough to be embedded in organisms, tissues or devices. The ability to produce continuous-wave lasing in microcavities immersed in blood serum highlights practical applications of these microscale lasers for sensing and illumination in complex biological environments.},
doi = {10.1038/s41565-018-0161-8},
url = {https://www.osti.gov/biblio/1574385}, journal = {Nature Nanotechnology},
issn = {1748-3387},
number = 7,
volume = 13,
place = {United States},
year = {2018},
month = {6}
}

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    Liquid Crystalline Order and Electric Switching of Upconversion Luminescence in Colloidal Nanorod Suspensions
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    A practical review of shorter than excitation wavelength light emission processes
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    Controlling lanthanide-doped upconversion nanoparticles for brighter luminescence
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    Spectral properties of Tm 3+ doped NaYF 4 up-converting nanoparticles under single and double photoexcitation wavelengths
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    Revisiting the Enhanced Red Upconversion Emission from a Single β-NaYF4:Yb/Er Microcrystal By Doping with Mn2+ Ions
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