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Localized thermal processing with a laser‐trapped and heated metal nanoparticle
Author(s) -
Numata Takayuki,
Tatsuta Hirokazu,
Morita Yoshiaki,
Otani Yukitoshi,
Umeda Norihiro
Publication year - 2007
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.20161
Subject(s) - photothermal therapy , materials science , substrate (aquarium) , laser , nanoparticle , thermal , continuous wave , irradiation , optoelectronics , photothermal effect , radiation , nanotechnology , optics , oceanography , physics , meteorology , nuclear physics , geology
Abstract We report localized thermal processing using a laser‐trapped and heated metal nanoparticle. A metal nanoparticle trapped by a focused, continuous wave (CW), near‐infrared laser was heated by photothermal conversion and acted as a remotely controllable nanosized thermal tool for processing a workpiece. We demonstrated the processing of a glass substrate with an optically trapped gold nanoparticle (diameter 200 nm) irradiated by a Nd:YAG laser (λ = 1.064 µm, CW). Laser irradiation caused local melting of the substrate and a crater‐like nanosized imprint on the substrate, demonstrating thermal nanoprocessing of an optically transparent material. Copyright © 2007 Institute of Electrical Engineers of Japan© 2007 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.