Enhanced two-point resolution using optical eigenmode optimized pupil functions

S. Kosmeier, M. Mazilu, J. Baumgartl, K. Dholakia

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Pupil filters have the capability to arbitrarily narrow the central lobe of a focal spot. We decompose the focal field of a confocal-like imaging system into optical eigenmodes to determine optimized pupil functions, that deliver superresolving scanning spots. As a consequence of this process, intensity is redistributed from the central lobe into side lobes restricting the field of view (FOV). The optical eigenmode method offers a powerful way to determine optimized pupil functions. We carry out a comprehensive study to investigate the relationship between the size of the central lobe, its intensity, and the FOV with the use of a dual display spatial light modulator. The experiments show good agreement with theoretical predictions and numerical simulations. Utilizing an optimized sub-diffraction focal spot for confocal-like scanning imaging, we experimentally demonstrate an improvement of the two-point resolution of the imaging system.

Original languageEnglish
Article number105707
JournalJournal of Optics
Volume13
Issue number10
DOIs
Publication statusPublished - 2011 Oct 1

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pupils
lobes
Imaging systems
Scanning
field of view
Diffraction
Display devices
Imaging techniques
scanning
Computer simulation
light modulators
Experiments
optics
filters
predictions
diffraction
simulation
Spatial light modulators

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Kosmeier, S. ; Mazilu, M. ; Baumgartl, J. ; Dholakia, K. / Enhanced two-point resolution using optical eigenmode optimized pupil functions. In: Journal of Optics. 2011 ; Vol. 13, No. 10.
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Enhanced two-point resolution using optical eigenmode optimized pupil functions. / Kosmeier, S.; Mazilu, M.; Baumgartl, J.; Dholakia, K.

In: Journal of Optics, Vol. 13, No. 10, 105707, 01.10.2011.

Research output: Contribution to journalArticle

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