Broadband Coherent Enhancement of Transmission and Absorption in Disordered Media

Chia Wei Hsu, Arthur Goetschy, Yaron Bromberg, A. Douglas Stone, Hui Cao

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


Spatial modulation of the incident wave front has become a powerful method for controlling the diffusive transport of light in disordered media; however, such interference-based control is intrinsically sensitive to frequency detuning. Here, we show analytically and numerically that certain wave fronts can exhibit strongly enhanced total transmission or absorption across bandwidths that are orders of magnitude broader than the spectral correlation width of the speckles. Such broadband enhancement is possible due to long-range correlations in coherent diffusion, which cause the spectral degrees of freedom to scale as the square root of the bandwidth rather than the bandwidth itself.

Original languageAmerican English
Article number223901
JournalPhysical Review Letters
Issue number22
StatePublished - 25 Nov 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 American Physical Society.


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