Special Section on Optical Refrigeration and Radiation-Balanced Lasers

Photothermal heating of nanoribbons

[+] Author Affiliations
Bennett E. Smith

University of Washington, Department of Chemistry, Seattle, Washington 98195, United States

Xuezhe Zhou

University of Washington, Department of Materials Science and Engineering, 302 Roberts Hall, Box 352120, Seattle, Washington 98195, United States

E. James Davis

University of Washington, Department of Chemical Engineering, Seattle, Washington 98195, United States

Peter J. Pauzauskie

University of Washington, Department of Materials Science and Engineering, 302 Roberts Hall, Box 352120, Seattle, Washington 98195, United States

Pacific Northwest National Laboratory, Physical and Computational Sciences Directorate, Richland, Washington 99352, United States

Opt. Eng. 56(1), 011111 (Jan 02, 2017). doi:10.1117/1.OE.56.1.011111
History: Received July 21, 2016; Accepted December 5, 2016
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Abstract.  Nanoscale optical materials are of great interest for building future optoelectronic devices for information processing and sensing applications. Although heat transfer ultimately limits the maximum power at which nanoscale devices may operate, gaining a quantitative experimental measurement of photothermal heating within single nanostructures remains a challenge. Here, we measure the nonlinear optical absorption coefficient of optically trapped cadmium-sulfide nanoribbons at the level of single nanostructures through observations of their Brownian dynamics during single-beam laser trapping experiments. A general solution to the heat transfer partial differential equation is derived for nanostructures having rectilinear morphology including nanocubes and nanoribbons. Numerical electromagnetic calculations using the discrete-dipole approximation enable the simulation of the photothermal heating source function and the extraction of nonlinear optical absorption coefficients from experimental observations of single nanoribbon dynamics.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Bennett E. Smith ; Xuezhe Zhou ; E. James Davis and Peter J. Pauzauskie
"Photothermal heating of nanoribbons", Opt. Eng. 56(1), 011111 (Jan 02, 2017). ; http://dx.doi.org/10.1117/1.OE.56.1.011111


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