Enantioselective manipulation of single chiral nanoparticles using optical tweezers

• Published in: Nanoscale Vol. 12; no. 8; pp. 531 - 537
• Main Authors: Ali, Rfaqat, Pinheiro, Felipe A, Dutra, Rafael S, Rosa, Felipe S. S, Maia Neto, Paulo A
• Format: Journal Article
• Language: English
• Published: England Royal Society of Chemistry 27.02.2020
• Subjects: Beams (radiation); Chirality; Circular polarization; Drag; Enantiomers; Nanoparticles; Nanospheres; Optical properties; Optical trapping; Plasmonics; Position measurement; Rotation; Trapped particles

We put forward an enantioselective method for chiral nanoparticles using optical tweezers. We demonstrate that the optical trapping force in a typical, realistic optical tweezing setup with circularly-polarized trapping beams is sensitive to the chirality of core-shell nanoparticles, allowing for ef...