24 April 2018 Novel non-plasmonic optical trapping: nano-structured semiconductor assisted (NASSCA) optical tweezers
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Proceedings Volume 10712, Optical Manipulation Conference; 107121W (2018) https://doi.org/10.1117/12.2319553
Event: SPIE Structured Light, 2018, Yokohama, Japan
Abstract
We have studied plasmonic optical tweezers (POT) for nanomaterials such as DNA and polymers. These nanomaterials would be efficiently trapped by a plasmon-enhanced optical force. However, plasmon excitation also leads to a photothermal effect. Such heat generation has frequently hindered POT. Recently, we have developed a novel optical trapping technique; Nano-Structured Semi-Conductor-Assisted (NASSCA) optical tweezers. In NASSCA optical tweezers, we used a metal-free black silicon with a nanoneedles structure on the surface. NASSCA optical tweezers presents a useful and powerful manipulation technique without heat generation.
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Yuki Uenobo, Tatsuya Shoji, Ayaka Mototsuji, Sawa Komoto, Tatsuya Nagai, Denver Linklater, Juodkazis Saulius , Yasuyuki Tsuboi, "Novel non-plasmonic optical trapping: nano-structured semiconductor assisted (NASSCA) optical tweezers ", Proc. SPIE 10712, Optical Manipulation Conference, 107121W (24 April 2018); doi: 10.1117/12.2319553; https://doi.org/10.1117/12.2319553
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