Plasmonic optical trapping allows trapping and manipulation of micro- and even nanometer-sized particles using localized and enhanced electric fields by plasmon resonance in metallic nanostructure. We consider an optical conveyor belt consisting of an array of nanodisks acting as optical tweezers with different sizes to implement a system to trap and manipulate particles through a laser-induced gradient force. An electric field induced and localized at each optical resonator is sensitive to the wavelength and polarization. The maximum electric field is enhanced at resonant wavelength depending on the shape and size of the plasmonic nanostructure used for light localization. By changing the light wavelength and polarization, the position of localized light induced in the disk can be determined and nanoparticles can be moved to a desired location through the variation of resonance conditions without any mechanical forces.
|Title of host publication||International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017|
|Editors||Jaebum Choo, Seung-Han Park|
|Publication status||Published - 2017|
|Event||International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017 - Jeju, Korea, Republic of|
Duration: 2017 Feb 22 → 2017 Feb 24
|Name||Progress in Biomedical Optics and Imaging - Proceedings of SPIE|
|Other||International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017|
|Country||Korea, Republic of|
|Period||17/2/22 → 17/2/24|
Bibliographical noteFunding Information:
This work was supported by the National Research Foundation (NRF) grants funded by the Korean Government (NRF-2012R1A4A1029061 and 2015R1A2A1A10052826).
© 2017 SPIE.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Radiology Nuclear Medicine and imaging