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Spectrally resolved point-spread-function engineering using a complex medium

Boniface, Antoine and Mounaix, Mickael and Blochet, Baptiste and de Aguiar, Hilton B. and Quéré, Fabien and Gigan, Sylvain (2021) Spectrally resolved point-spread-function engineering using a complex medium. Optics Express, 29 (6). pp. 8985-8996. ISSN 1094-4087.

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Propagation of an ultrashort pulse of light through strongly scattering media generates an intricate spatio-spectral speckle that can be described by means of the multi-spectral transmission matrix (MSTM). In conjunction with a spatial light modulator, the MSTM enables the manipulation of the pulse leaving the medium; in particular focusing it at any desired spatial position and/or time. Here, we demonstrate how to engineer the point-spread-function of the focused beam both spatially and spectrally, from the measured MSTM. It consists of numerically filtering the spatial content at each wavelength of the matrix prior to focusing. We experimentally report on the versatility of the technique through several examples, in particular as an alternative to simultaneous spatial and temporal focusing, with potential applications in multiphoton microscopy.

Item Type:Article
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URLURL TypeDescription
Boniface, Antoine0000-0002-6551-8519
de Aguiar, Hilton B.0000-0002-2426-0371
Additional Information:© 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Received 23 Jul 2020; revised 26 Feb 2021; accepted 1 Mar 2021; published 9 Mar 2021. Funding: European Research Council (Grant SMARTIES - 724473); Agence Nationale de la Recherche (ANR-10-IDEX-0001-02 PSL*, ANR-10-LABX-0010); Australian Research Council (DE210100934). SG is a member of the Institut Universitaire de France. HBdA was supported by the LabEx ENS-ICFP: ANR-10-LABX-0010/ANR-10-IDEX-0001-02 PSL*. The authors declare no conflicts of interest. Data availability. Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.
Funding AgencyGrant Number
European Research Council (ERC)SMARTIES - 724473
Agence Nationale pour la Recherche (ANR)ANR-10-IDEX-0001-02 PSL
Agence Nationale de la Recherche (ANR)ANR-10-LABX-0010
Australian Research CouncilDE210100934
Issue or Number:6
Record Number:CaltechAUTHORS:20210429-144554501
Persistent URL:
Official Citation:Antoine Boniface, Mickael Mounaix, Baptiste Blochet, Hilton B. de Aguiar, Fabien Quéré, and Sylvain Gigan, "Spectrally resolved point-spread-function engineering using a complex medium," Opt. Express 29, 8985-8996 (2021)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:108891
Deposited By: George Porter
Deposited On:29 Apr 2021 22:37
Last Modified:29 Apr 2021 22:37

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