Enantioselection and chiral sorting of single microspheres using optical pulling forces

Autor(es)

Ali, Rfaqat ^[1] ; Dutra, R. S. ^[2] ; Pinheiro, F. A. ^[3] ; Neto, P. A. Maia ^[3]

Afiliação do(s) autor(es)

^[1] Univ Campinas UNICAMP, Photon Res Ctr, Appl Phys Dept, Gleb Wataghin Phys Inst, POB 6165, BR-13083970 Campinas, SP - Brazil

^[2] Inst Fed Educ Ciencia & Tecnol, LISComp IFRJ, Rua Sebastiao de Lacerda, BR-26600000 Paracambi, RJ - Brazil

^[3] Univ Fed Rio de Janeiro, Inst Fis, Caixa Postal 68528, BR-21941972 Rio De Janeiro, RJ - Brazil

• Tipo de documento: Artigo Científico
• Fonte: OPTICS LETTERS; v. 46, n. 7, p. 1640-1643, APR 1 2021.
• Citações Web of Science: 0

Resumo

We put forward a novel, twofold scheme that enables, at the same time, all-optical enantioselection and sorting of single multipolar chiral microspheres based on optical pulling forces exerted by two non-collinear, non-structured, circularly polarized light sources. Our chiral resolution method can be externally controlled by varying the angle between their incident wavevectors, allowing for fine-tuning of the range of chiral indices for enantioselection. Enantioselectivity is achieved by choosing angles such that only particles with the same handedness of the light sources are pulled. This proposal allows one to achieve all-optical sorting of chiral microspheres with arbitrarily small chiral parameters, thus outperforming current optical methods. (C) 2021 Optical Society of America (AU)

• Processo FAPESP: 20/03131-2 - Interação entre luz e som em microcavidades ópticas
• Beneficiário: Rfaqat Ali
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 14/50983-3 - INCT 2014: fluidos complexos
• Beneficiário: Antonio Martins Figueiredo Neto
• Modalidade de apoio: Auxílio à Pesquisa - Temático