Pathlengths of open channels in multiple scattering media
arXiv:1608.01837 · doi:10.1364/OE.24.026472
Abstract
We report optical measurements of the spectral width of open transmission channels in a three-dimensional diffusive medium. The light transmission through a sample is enhanced by efficiently coupling to open transmission channels using repeated digital optical phase conjugation. The spectral properties are investigated by enhancing the transmission, fixing the incident wavefront and scanning the wavelength of the laser. We measure the transmitted field to extract the field correlation function and the enhancement of the total transmission. We find that optimizing the total transmission leads to a significant increase in the frequency width of the field correlation function. Additionally we find that the enhanced transmission persists over an even larger frequency bandwidth. This result shows open channels in the diffusive regime are spectrally much wider than previous measurements in the localized regime suggest.
References in corpus (16)
- Random-Matrix Theory of Quantum Transport
- Measuring the Transmission Matrix in Optics : An Approach to the Study and Control of Light Propagation in Disordered Media
- Universal optimal transmission of light through disordered materials
- Unusual Resonators: Plasmonics, Metamaterials, and Random Media
- Quantum-Secure Authentication with a Classical Key
- Quantum mechanical time-delay matrix in chaotic scattering
- Coherent control of total transmission of light through disordered media
- Full transmission and reflection of waves propagating through a maze of disorder
- Transmission eigenvalues and the bare conductance in the crossover to Anderson localization
- Invariance property of wave scattering through disordered media
- Transmission channels for light in absorbing random media: from diffusive to ballistic-like transport
- Broadband Coherent Enhancement of Transmission and Absorption in Disordered Media
- The Single-Channel Regime of Transport through Random Media
- Generating particle-like scattering states in wave transport
- Interplay between multiple scattering, emission, and absorption of light in the phosphor of a white light-emitting diode
- Dynamic and spectral properties of transmission eigenchannels in random media
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