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Superresolution Linear Optical Imaging in the Far Field.
Pushkina, A A; Maltese, G; Costa-Filho, J I; Patel, P; Lvovsky, A I.
Afiliación
  • Pushkina AA; Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom.
  • Maltese G; Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom.
  • Costa-Filho JI; Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom.
  • Patel P; Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom.
  • Lvovsky AI; Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom.
Phys Rev Lett ; 127(25): 253602, 2021 Dec 17.
Article en En | MEDLINE | ID: mdl-35029451
The resolution of optical imaging devices is ultimately limited by the diffraction of light. To circumvent this limit, modern superresolution microscopy techniques employ active interaction with the object by exploiting its optical nonlinearities, nonclassical properties of the illumination beam, or near field probing. Thus, they are not applicable whenever such interaction is not possible, for example, in astronomy or noninvasive biological imaging. Far field, linear optical superresolution techniques based on passive analysis of light coming from the object would cover these gaps. In this Letter, we present the first proof-of-principle demonstration of such a technique for 2D imaging. It works by accessing information about spatial correlations of the image optical field and, hence, about the object itself via measuring projections onto Hermite-Gaussian transverse spatial modes. With a basis of 21 spatial modes in both transverse dimensions, we perform two-dimensional imaging with twofold resolution enhancement beyond the diffraction limit.

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2021 Tipo del documento: Article País de afiliación: Reino Unido Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2021 Tipo del documento: Article País de afiliación: Reino Unido Pais de publicación: Estados Unidos