Optical trapping of porous silicon nanoparticles.
Nanotechnology
; 22(50): 505704, 2011 Dec 16.
Article
en En
| MEDLINE
| ID: mdl-22108540
ABSTRACT
Silicon nanoparticles obtained by ball-milling of a 50% porosity silicon layer have been optically trapped when dispersed in a water-surfactant environment. We measured the optical force constants using linearly and radially polarized trapping beams finding a reshaping of the optical potential and an enhanced axial spring constant for the latter. These measurements open perspectives for the control and handling of silicon nanoparticles as labeling agents in biological analysis and fluorescence imaging techniques.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Nanotechnology
Año:
2011
Tipo del documento:
Article
País de afiliación:
Italia