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Applied Physics Letters / Volume 97 / Issue 3 / LASERS, OPTICS, AND OPTOELECTRONICS

Appl. Phys. Lett. 97, 031112 (2010); http://dx.doi.org/10.1063/1.3459977 (3 pages)

Near field photothermal printing of gold microstructures and nanostructures

Fan Xiao1, Ting-Hsiang Wu2, and Pei Yu Chiou1

1Department of Mechanical and Aerospace Engineering, University of California at Los Angeles (UCLA), Los Angeles, California 90095, USA
2Department of Electrical Engineering, University of California at Los Angeles (UCLA), Los Angeles, California 90095, USA

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(Received 2 March 2010; accepted 10 June 2010; published online 21 July 2010)

We report on a rapid near field photothermal printing (NPTP) approach for fabricating gold microstructures and nanostructures guided by flexible and transparent polymer molds. The optical energy of nanosecond laser pulse is spatially redistributed by a PDMS phase-shifting mask, resulting in selective gold melting in light intensity enhanced areas. The melted gold migrates to cold areas and forms desired structures after cooled down. Using NPTP, we have demonstrated rapid laser printing of periodic gold nanowire array with a 320 nm linewidth, nanosphere arrays with 400 nm in diameter, and nonperiodic structures across a 1 mm2 area with few laser pulses.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

gold, microfabrication, nanofabrication, nanowires, phase shifting masks, photolithography, photothermal effects, polymers

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3459977

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    Y. Kaganovskii, H. Vladomirsky, and M. Rosenbluh, J. Appl. Phys. 100, 044317 (2006)JAPIAU000100000004044317000001.

    W. Huang, W. Qian, and M. A. El-Sayed, J. Appl. Phys. 98, 114301 (2005)JAPIAU000098000011114301000001.


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