PhD Thesis: "Ad-hoc control of scattering for adaptive opaque lenses"

Abstract

Microscopy and optical imaging are drastically limited by the inhomogeneities encountered by the light while propagating from the object of interest to the detection system. In this context, adaptive optics and wavefront manipulation are able to improve the contrast (visibility) of systems embedded in turbid and noisy environments. By wavefront shaping, the fluence of the light propagating through complex systems can be controlled, thus, confining the light in a defined microscopic region in the volume or at the back of scattering structures. We can imagine to counterintuitively exploit the optical barriers, turning them into scattering lenses. In this Thesis we consider these new generation of lenses: we demonstrate them to be configurable optical devices able to produce tailored light structures, hence resulting extremely advantageous if integrated in optical systems.

arXiv comment75 pages. arXiv admin note: text overlap with arXiv:0807.1087 by other authors

References in corpus (14)

• Measuring the Transmission Matrix in Optics : An Approach to the Study and Control of Light Propagation in Disordered Media
• Phase control algorithms for focusing light through turbid media
• Recent advances in wavefront shaping techniques for biomedical applications
• Quantum-Secure Authentication with a Classical Key
• Characterization of the angular memory effect of scattered light in biological tissues
• Exploiting speckle correlations to improve the resolution of wide-field fluorescence microscopy
• Femtosecond laser nanostructuring in glass with sub-50nm feature sizes
• Sub-diffraction Focussing using Quadratic Measure Eigenmodes
• Optical Quadratic Measure Eigenmodes
• Optical Eigenmodes; Exploiting the quadratic nature of the energy flux and of scattering interactions
• Focusing through random media: eigenchannel participation number and intensity correlation
• Single-photon entanglement generation by wavefront shaping in a multiple-scattering medium
• In vivo deep tissue imaging using wavefront shaping optical coherence tomography
• Metadisorder for designer light in random-walk systems