Title :
Photothermal effects in a plasmonic metamaterial structure
Author :
Qiu, Min ; Chen, Yiting ; Chen, Xi ; Wang, Ling ; Hao, Jiaming ; Min Yan
Author_Institution :
Dept. of Opt. Eng., Zhejiang Univ., Hangzhou, China
fDate :
Oct. 30 2011-Nov. 2 2011
Abstract :
Heat generation due to photothermal effects in plasmonic nanostructures have generated many important applications, due to the strong enhancement of light absorption through plasmonic resonance at visible and near-infrared region. In this talk, we review our recent experimental efforts on photothermal effects in a metamaterial nanostructure, which has an ultrasensitive heating response owing to plasmonic resonance. We observed close-to-instantaneous fusion and re-shaping of the nanoparticles with a nanosecond pulse train. The generated heat profile has a subwavelength resolution, and the resonance wavelength can be in principle tailored to arbitrary wavelength region by choosing an appropriate geometry for the resonator structure.
Keywords :
infrared spectra; metamaterials; nanoparticles; nanophotonics; optical resonators; photothermal effects; plasmonics; visible spectra; close-to-instantaneous fusion; heat generation; light absorption; nanoparticle reshaping; nanosecond pulse train; photothermal effects; plasmonic metamaterial nanostructure; plasmonic nanostructures; plasmonic resonance; resonance wavelength; resonator structure; ultrasensitive heating response; Cameras; Charge coupled devices; Infrared heating; Optical polarization; Radiation effects; Welding;
Conference_Titel :
Microopics Conference (MOC), 2011 17th
Conference_Location :
Sendai
Print_ISBN :
978-1-4577-1344-6
