Local Crystallization of a Resonant Amorphous Silicon Nanoparticle for the Implementation of Optical Nanothermometry

Local optical heating and Raman nanothermometry based on resonant silicon particles provide a new promising platform for a number of key nanophotonics applications associated with thermally induced processes at the nano- and microscale. In this work, the crystallization of amorphous silicon nanodisk...

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Bibliographic Details
Published in:JETP letters 2018-06, Vol.107 (11), p.699-704
Main Authors: Zograf, G. P., Yu, Y. F., Baryshnikova, K. V., Kuznetsov, A. I., Makarov, S. V.
Format: Article
Language:English
Subjects:
Amorphous silicon
Atomic
Biological and Medical Physics
Biophysics
Condensed Matter
Crystallization
Heating
Laser beams
Molecular
Nanoparticles
Optical and Plasma Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum Information Technology
Solid State Physics
Spatial resolution
Spintronics
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Summary:Local optical heating and Raman nanothermometry based on resonant silicon particles provide a new promising platform for a number of key nanophotonics applications associated with thermally induced processes at the nano- and microscale. In this work, the crystallization of amorphous silicon nanodisks with optical resonances caused by local optical heating has been studied. The crystallization process is controlled by Raman microspectroscopy. The crystallization temperature of a single nanodisk of about 900 K has been determined under the action of a strongly focused cw laser beam. As a result, an annealed resonant silicon nanoparticle has allowed controlled and reversible heating in the temperature range of 300–1000 K with the possibility of mapping the heating region with submicron spatial resolution.
ISSN:0021-3640
1090-6487
DOI:10.1134/S0021364018110140