Photovoltaic versus optical tweezers.
Opt Express
; 19(24): 24320-30, 2011 Nov 21.
Article
em En
| MEDLINE
| ID: mdl-22109459
ABSTRACT
The operation of photovoltaic (PV) tweezers, using the evanescent light-induced PV fields to trap and pattern nano- and micro-meter particles on a LiNbO(3) crystal surface, is discussed. The case of a periodic light pattern is addressed in detail, including the role of particle shape and the modulation index of the light pattern. The use of a single Gaussian light beam is also considered. Illustrative experiments for the two situations are presented. The performance of such PV tweezers in comparison to the best established case of optical tweezers, using optical forces, is considered. Differential features between the two trapping approaches are remarked.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Eletroquímica
/
Pinças Ópticas
/
Micromanipulação
Tipo de estudo:
Evaluation_studies
Idioma:
En
Revista:
Opt Express
Ano de publicação:
2011
Tipo de documento:
Article