Immersed transparent microsphere magnifying sub-diffraction-limited objects.
Appl Opt
; 52(30): 7265-70, 2013 Oct 20.
Article
em En
| MEDLINE
| ID: mdl-24216580
ABSTRACT
The resolution of an optical microscope is restricted by the diffraction limit, which is approximately 200 nm for a white light source. We report that sub-diffraction-limited objects can be resolved in immersion liquids using a microsphere optical nanoscopy (MONS) technique. Image magnifications and resolutions were obtained experimentally and compared in different immersion liquids. We show that a 100 µm diameter barium titanate (BaTiO(3)) glass microsphere combined with a standard optical microscope can image sub-diffraction-limited objects with halogen light in three different media water, 40% sugar solution, and microscope immersion oil. In this paper, the super-resolution imaging performance has been described with the three immersion liquid types and the mechanisms are discussed with Mie theory calculation in the field of a Poynting vector.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Appl Opt
Ano de publicação:
2013
Tipo de documento:
Article