Optical eigenmodes for imaging applications

Sebastian Kosmeier, Michael Mazilu, Anna Chiara De Luca, Jörg Baumgartl, Kishan Dholakia

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We decompose the light field in the focal plane of an imaging system into a set of optical eigenmodes. Subsequently, the superposition of these eigenmodes is identified, that optimizes certain aspects of the imaging process. In practice, the optical eigenmodes modes are implemented using a liquid crystal spatial light modulator. The optical eigenmodes of a system can be determined fully experimentally, taking aberrations into account. Alternatively, theoretically determined modes can be encoded on an aberration corrected spatial light modulator. Both methods are shown to be feasible for applications. To achieve subdiffractive light focussing, optical eigenmodes are superimposed to minimize the width of the focal spot within a small region of interest. In conjunction with a confocal-like detection process, these spots can be utilized for laser scanning imaging. With optical eigenmode engineered spots we demonstrate enhanced two-point resolution compared to the diffraction limited focus and a Bessel beam. Furthermore, using a first order ghost imaging technique, optical eigenmodes can be used for phase sensitive indirect imaging. Numerically we show the phase sensitivity by projecting optical eigenmodes onto a Laguerre-Gaussian target with a unit vortex charge. Experimentally the method is verified by indirect imaging of a transmissive sample.

Original languageEnglish
Title of host publicationComplex Light and Optical Forces VI
DOIs
Publication statusPublished - 2012 Mar 2
EventComplex Light and Optical Forces VI - San Francisco, CA, United States
Duration: 2012 Jan 252012 Jan 26

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8274
ISSN (Print)0277-786X

Conference

ConferenceComplex Light and Optical Forces VI
CountryUnited States
CitySan Francisco, CA
Period12/1/2512/1/26

Fingerprint

light modulators
aberration
Imaging
Imaging techniques
ghosts
imaging techniques
Aberrations
liquid crystals
vortices
Spatial Light Modulator
scanning
Aberration
Liquid Crystals
diffraction
lasers
Optical resolving power
Bessel Beam
Imaging systems
Liquid crystals
Laser Scanning

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Kosmeier, S., Mazilu, M., De Luca, A. C., Baumgartl, J., & Dholakia, K. (2012). Optical eigenmodes for imaging applications. In Complex Light and Optical Forces VI [82740I] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8274). https://doi.org/10.1117/12.912058
Kosmeier, Sebastian ; Mazilu, Michael ; De Luca, Anna Chiara ; Baumgartl, Jörg ; Dholakia, Kishan. / Optical eigenmodes for imaging applications. Complex Light and Optical Forces VI. 2012. (Proceedings of SPIE - The International Society for Optical Engineering).
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Kosmeier, S, Mazilu, M, De Luca, AC, Baumgartl, J & Dholakia, K 2012, Optical eigenmodes for imaging applications. in Complex Light and Optical Forces VI., 82740I, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8274, Complex Light and Optical Forces VI, San Francisco, CA, United States, 12/1/25. https://doi.org/10.1117/12.912058

Optical eigenmodes for imaging applications. / Kosmeier, Sebastian; Mazilu, Michael; De Luca, Anna Chiara; Baumgartl, Jörg; Dholakia, Kishan.

Complex Light and Optical Forces VI. 2012. 82740I (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8274).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Kosmeier S, Mazilu M, De Luca AC, Baumgartl J, Dholakia K. Optical eigenmodes for imaging applications. In Complex Light and Optical Forces VI. 2012. 82740I. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.912058