Rapid broadband characterization of scattering medium using hyperspectral imaging

Antoine Boniface; Ivan Gusachenko; Kishan Dholakia; Sylvain Gigan

doi:10.1364/OPTICA.6.000274

Rapid broadband characterization of scattering medium using hyperspectral imaging

Antoine Boniface, Ivan Gusachenko, Kishan Dholakia, Sylvain Gigan

Department of Physics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Scattering of a coherent ultrashort pulse of light by a disordered medium results in a complex spatiotemporal speckle pattern. The form of the pattern can be described by knowledge of a spectrally dependent transmission matrix, which can in turn be used to shape the propagation of the pulse through the medium. We introduce a method for rapid measurement of this matrix for the entire spectrum of the pulse based on a hyperspectral imaging system that is close to 2 orders of magnitude faster than any approach previously reported. We demonstrate narrowband as well as spatiotemporal refocusing of a femtosecond pulse temporally stretched to several picoseconds after propagation through a multiply scattering medium. This enables new routes for multiphoton imaging and manipulation through complex media.

Original language	English
Article number	346381
Pages (from-to)	274-279
Number of pages	6
Journal	Optica
Volume	6
Issue number	3
DOIs	https://doi.org/10.1364/OPTICA.6.000274
Publication status	Published - 2019 Mar 20

Bibliographical note

Funding Information:
Engineering and Physical Sciences Research Council (EPSRC) (EP/R004854/1); Scottish Universities Physics Alliance (SUPA) (SFC H17014); H2020 European Research Council (ERC) (SMARTIES–724473).

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics

Access to Document

10.1364/OPTICA.6.000274

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Cite this

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title = "Rapid broadband characterization of scattering medium using hyperspectral imaging",

abstract = "Scattering of a coherent ultrashort pulse of light by a disordered medium results in a complex spatiotemporal speckle pattern. The form of the pattern can be described by knowledge of a spectrally dependent transmission matrix, which can in turn be used to shape the propagation of the pulse through the medium. We introduce a method for rapid measurement of this matrix for the entire spectrum of the pulse based on a hyperspectral imaging system that is close to 2 orders of magnitude faster than any approach previously reported. We demonstrate narrowband as well as spatiotemporal refocusing of a femtosecond pulse temporally stretched to several picoseconds after propagation through a multiply scattering medium. This enables new routes for multiphoton imaging and manipulation through complex media.",

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note = "Funding Information: Engineering and Physical Sciences Research Council (EPSRC) (EP/R004854/1); Scottish Universities Physics Alliance (SUPA) (SFC H17014); H2020 European Research Council (ERC) (SMARTIES–724473).",

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AU - Gusachenko, Ivan

AU - Dholakia, Kishan

AU - Gigan, Sylvain

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