Research Papers

Near-axial rotation of nanorods by focused laser beams using dual-beam method

[+] Author Affiliations
Sun-Uk Hwang

Gwangju Institute of Science and Technology (GIST), Department of Mechatronics, 261 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, Korea

Yong-Jin Kim

Seoul National University, National Creative Research Initiative Center for Semiconductor Nanorods and Department of Physics and Astronomy, Seoul, 151-747, Korea

POSTECH, Department of Materials Science and Engineering, Pohang, Gyeongbuk, 790-784, Korea

Gyu-Chul Yi

Seoul National University, National Creative Research Initiative Center for Semiconductor Nanorods and Department of Physics and Astronomy, Seoul, 151-747, Korea

Yong-Gu Lee

Gwangju Institute of Science and Technology (GIST), Department of Mechatronics, 261 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, Korea

J. Nanophoton. 5(1), 053507 (May 13, 2011). doi:10.1117/1.3590196
History: Received December 22, 2010; Revised April 12, 2011; Accepted April 14, 2011; Published May 13, 2011; Online May 13, 2011
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A dual-beam method for the near-axial rotation of dielectric nanorods was devised. The method uses two laser beams, where a focused Gaussian beam holds the object in the beam axis while a focused Laguerre–Gaussian beam rotates the object. The near-axial rotation of ZnO nanorods using this method was then experimentally demonstrated, and the radial offset distance of the rotating nanorod from the beam axis was quantified via a video tracking method.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation

Sun-Uk Hwang ; Yong-Jin Kim ; Gyu-Chul Yi and Yong-Gu Lee
"Near-axial rotation of nanorods by focused laser beams using dual-beam method", J. Nanophoton. 5(1), 053507 (May 13, 2011). ; http://dx.doi.org/10.1117/1.3590196


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