Abstract
Abstract Optical manipulation using electronic resonance can realize the selective manipulation of nano objects exhibiting quantum mechanical properties by confining electronic systems based on the characteristics of individual objects. This study theoretically proposes a method to actualize selective manipulation based on the resonant optical response. In this method, counter-propagating light waves are used to extract the pure contribution of the resonant optical response in the exerted force by regulating the balance between the two light waves. Furthermore, the selection of nanoparticles with particular resonance levels at room temperature and quantum dots with a particular size in the cryogenic condition is numerically demonstrated. An especially interesting aspect of this method is that it enables the examination of the absorption spectrum of a single nanoparticle by mapping the absorption efficiency to its mechanical motion. The results reveal an unconventional link between optical force technology and nanomaterials science.
Highlights
According to the electromagnetic theory by Maxwell, light conveys momentum, and if light interacts with a substance, the momentum is transferred to the substance and a mechanical force is exerted
This study theoretically proposes a method to actualize selective manipulation based on the resonant optical response
The objective of this study is to theoretically propose a scheme to actualize the concept of resonant optical manipulation that is not affected by the above-mentioned problems, where the selectivity of optical manipulation based on the resonant optical response is substantially enhanced under general conditions
Summary
According to the electromagnetic theory by Maxwell, light conveys momentum, and if light interacts with a substance, the momentum is transferred to the substance and a mechanical force is exerted. This force is sometimes called optical force, and is of two types: (a) dissipative force, which arises from the transfer of light momentum to a substance by absorption and scattering, and (b) gradient force arising from an electromagnetic interaction between induced polarization and incident light. Trapping of NPs associated with plasmonic resonance is being extensively studied [13,14,15]. Localized and enhanced electric field arising from the localized surface plasmon resonance near the metallic
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