Open AccessEffects of digital phase-conjugate light intensity on time-reversal imaging through animal tissue
Author(s) -
Sogo Toda,
Y. Kato,
Nobuki Kudo,
Koïchi Shimizu
Publication year - 2018
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.9.001570
Subject(s) - transillumination , optics , phase conjugation , conjugate , light intensity , phase modulation , intensity (physics) , phase (matter) , light scattering , modulation (music) , intensity modulation , scattering , materials science , physics , acoustics , phase noise , mathematics , laser , mathematical analysis , quantum mechanics
For transillumination imaging of animal tissues, we have attempted to suppress the scattering effect in a turbid medium using the time-reversal principle of phase-conjugate light. We constructed a digital phase-conjugate system to enable intensity modulation and phase modulation. Using this system, we clarified the effectiveness of the intensity information for restoration of the original light distribution through a turbid medium. By varying the scattering coefficient of the medium, we clarified the limit of time-reversal ability with intensity information of the phase-conjugate light. Experiment results demonstrated the applicability of the proposed technique to animal tissue.