Controlling the propagation of light in disordered scattering media

Ivo Micha Vellekoop

Research output: Thesis › PhD Thesis - Research UT, graduation UT

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Abstract

In this thesis, we explored the use of wavefront shaping to steer light through strongly scattering materials. We found that scattering does not irreversibly scramble the incidentwave. By shaping the incident wavefront, an opaque object can formany desired wavefront and focus light as sharply as an aberration free lens. We used feedback from a target behind, or in, an opaque object to shape the incident wave. This way, light was focused through, or inside, an opaque object for the first time ever. Wavefront shaping provides a newway to performexperiments on strongly scattering samples. By studying the total intensity transmission of a shaped wavefront, we found experimental evidence of open transport channels for light. This is an example of how wavefront shaping can be used to study fundamental properties of scattered waves.
Original languageEnglish
Awarding Institution
  • University of Twente
Supervisors/Advisors
  • Lagendijk, Aart , Supervisor
  • Mosk, A.P., Advisor
Award date24 Apr 2008
Place of PublicationEnschede
Print ISBNs978-90-365-2663-0
Publication statusPublished - 24 Apr 2008

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propagation
scattering
theses
aberration
lenses

Keywords

  • METIS-247304
  • IR-58928

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Vellekoop, Ivo Micha. / Controlling the propagation of light in disordered scattering media. Enschede, 2008. 142 p.
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Vellekoop, IM 2008, 'Controlling the propagation of light in disordered scattering media', University of Twente, Enschede.

Controlling the propagation of light in disordered scattering media. / Vellekoop, Ivo Micha.

Enschede, 2008. 142 p.

Research output: Thesis › PhD Thesis - Research UT, graduation UT

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N2 - In this thesis, we explored the use of wavefront shaping to steer light through strongly scattering materials. We found that scattering does not irreversibly scramble the incidentwave. By shaping the incident wavefront, an opaque object can formany desired wavefront and focus light as sharply as an aberration free lens. We used feedback from a target behind, or in, an opaque object to shape the incident wave. This way, light was focused through, or inside, an opaque object for the first time ever. Wavefront shaping provides a newway to performexperiments on strongly scattering samples. By studying the total intensity transmission of a shaped wavefront, we found experimental evidence of open transport channels for light. This is an example of how wavefront shaping can be used to study fundamental properties of scattered waves.

AB - In this thesis, we explored the use of wavefront shaping to steer light through strongly scattering materials. We found that scattering does not irreversibly scramble the incidentwave. By shaping the incident wavefront, an opaque object can formany desired wavefront and focus light as sharply as an aberration free lens. We used feedback from a target behind, or in, an opaque object to shape the incident wave. This way, light was focused through, or inside, an opaque object for the first time ever. Wavefront shaping provides a newway to performexperiments on strongly scattering samples. By studying the total intensity transmission of a shaped wavefront, we found experimental evidence of open transport channels for light. This is an example of how wavefront shaping can be used to study fundamental properties of scattered waves.

KW - METIS-247304

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M3 - PhD Thesis - Research UT, graduation UT

SN - 978-90-365-2663-0

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Vellekoop IM. Controlling the propagation of light in disordered scattering media. Enschede, 2008. 142 p.

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