The Wavefront Engineering Group is a research unit within the Department of Applied Physics, Universitat de Barcelona. We are a small group of six people working in imaging and physical optics problems:

  1. Our main target is the design, experimental implementation and characterization of highly focused electromagnetic fields in the focal area. We have developed a notable expertise manipulating the complex amplitude and polarization of light using computer-generated holograms displayed on spatial light modulators.
  2. Counterfeit detection of optical codes and other optical security problems is also one of our priorities. On the one hand, we use machine learning techniques to authenticate optically encoded information with a high degree of confidence. On the other, we develop encryption systems using focused beams with elliptical polarization.
  3. The measure of polarization in low light conditions can be challenging. We analyze this issue using 3D integral imaging techniques.

Circularly focused beam

We keep collaborations with:



28 June 2023: New Paper [Focused fields]. Local characterization of the polarization state of 3D electromagnetic fields: an alternative approach

20 January 2023: Kavan Ahmadi's thesis defense


14 October 2022: New paper [Optical security]

Optical visual encryption using focused beams and convolutional neural networks

1 October 2022: New paper [Thin films and electromagnetic optics]

Compact formulation of the transparent–absorbing isotropic interface electromagnetic problem

18-22 July 2022, V International Conference on Applications of Optics and Photonics (Guimarães, Portugal)

30 May 2022: New Tutorial [Thin films and electromagnetic optics]

Thin film optics computations in a high-level programming language environment: tutorial

20 May 2022: New Paper [3D imaging and holography].

Estimation of Degree of Polarization in low light using truncated Poisson distribution


13 October 2021: New Paper [3D imaging and holography].

Roadmap on digital holography [Invited]

9 September 2021: New Paper [Focused fields].

Experimental estimation of the longitudinal component of a highly focused electromagnetic field

27 August 2021: New Paper [Education].

Multi-spectral imaging: a tool for the study of the area burned in wildfires

30 July 2021: New paper [Focused fields].

Efficient calculation of highly focused electromagnetic Schell-model beams

19 -23 July 2021: OSA Imaging and Applied Optics Congress (OSA Virtual Event).

8 April 2021: OPSI-IASBS colloquium,

OPSI-IASBS colloquium - Prof. Artur Carnicer

5 April 2021: New paper [Other collaborations].

PENGEOM - A general-purpose geometry package for Monte Carlo simulation of radiation transport in complex material structures (New Version Announcement)

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Last Updated: 18 October 2022