Alejandro Cámara
What is my PhD thesis about?
My PhD thesis revolves around optical beam characterisation (download it here). In particular, my research lines include:
- Phase-space tomography of the Wigner distribution (WD):
- the experimental and simulated reconstruction of the WD for arbitrary optical beams,
- the implementation of experimental optical setups able to obtain the WD projections (Gyrator transform and fractional Fourier transform), from which the WD can be reconstructed, and
- the design of fast algorithms in order to achieve almost real-time reconstructions of the WD.
- Moments of the WD:
- obtention of the analytical expression for the arbitraty-order moment of the WD for an optical signal expanded in a complete set of orthonormal 2D functions (Hermite-Gaussian, Laguerre-Gaussian or Hermite-Laguerre-Gaussian modes), and
- application of the second-order moments to the selection of the basis in which expand a signal in order to minimize the number of non-null coefficients.
- Mutual intensity recovery:
- obtention of the mutual intensity of a spatially partially coherent signal using only intensity measurements, without need for the WD reconstruction.
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Latest update: February 29th, 2016