Journal
OPTICS LETTERS
Volume 36, Issue 3, Pages 424-426Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.36.000424
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- Taiwan's National Science Council (NSC) [NSC-98-2221-E-009-015-MY2, NSC-99-2120-M-009-009]
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We propose that a tapered photonic crystal waveguide design can unify optical trapping and transport functionalities to advance the controllability of optical manipulation. Subwavelength particles can be trapped by a resonance-enhanced field and transported to a specified position along the waveguide on demand by varying the input wavelength. A simulated transport ability as high as 148 (transport distance/wavelength variation) is obtained by the waveguide with 0.1 degrees tilted angle. Stable trapping of a 50 nm polystyrene particle can be achieved with input power of 7 mW. We anticipate that this design would be beneficial for future life science research and optomechanical applications. (C) 2011 Optical Society of America
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