195 citations · 1.7k across the 53 of their papers we have counts for
31 papers · 1 filter
A unified sensitivity kernel for coherent wave tomography in radar, seismic, ultrasound, and optical imaging
Alexey Yamilov
Imaging an inhomogeneous medium with waves rests on the response of a boundary measurement to a change of the medium inside, formally the sensitivity kernel of the inverse problem.…
Generalized Time-Reversal for Pulse Control in Diffusive Media
Rohin E. McIntosh, Arthur Goetschy, Alexey Yamilov +3
Time-reversal symmetry allows waves to retrace their paths through complex media and refocus at their origin. However, incomplete capture and reversal of scattered waves often limi…
Harnessing coherent-wave control for sensing applications
Pablo Jara, Arthur Goetschy, Hui Cao +1
Imaging techniques such as functional near-infrared spectroscopy (fNIRS) and diffuse optical tomography (DOT) achieve deep, non-invasive sensing in turbid media, but they are const…
Spectral Width of Maximum Deposition Eigenchannels in Diffusive Media
Rohin E. McIntosh, Arthur Goetschy, Nicholas Bender +4
The maximum deposition eigenchannel provides the largest possible power delivery to a target region inside a diffusive medium by optimizing the incident wavefront of a monochromati…
Anderson transition for light in three dimensions
Alexey Yamilov, Hui Cao, Sergey E. Skipetrov
We study Anderson transition for light in three dimensions by performing large-scale ab-initio simulations of electromagnetic wave transport in disordered ensembles of conducting s…
Delivering Broadband Light Deep Inside Diffusive Media
Rohin McIntosh, Arthur Goetschy, Nicholas Bender +4
Wavefront shaping enables targeted delivery of coherent light into random-scattering media, such as biological tissue, by constructive interference of scattered waves. However, bro…
Creating high-contrast patterns in multiple-scattering media via wavefront shaping
Liam Shaughnessy, Rohin E. McIntosh, Arthur Goetschy +5
Wavefront shaping allows focusing light through or inside strongly scattering media, but the background intensity also increases due to long-range correlations, reducing the target…
Sum rules for energy deposition eigenchannels in scattering systems
Alexey Yamilov, Nicholas Bender, Hui Cao
In a random-scattering system, the deposition matrix maps the incident wavefront to the internal field distribution across a target volume. The corresponding eigenchannels have bee…
Coherent enhancement of optical remission in diffusive media
Nicholas Bender, Arthur Goetschy, Chia Wei Hsu +4
From the earth's crust to the human brain, remitted waves are used for sensing and imaging in a diverse range of diffusive media. Separating the source and detector increases the p…
Anderson localization of electromagnetic waves in three dimensions
Alexey Yamilov, Sergey E. Skipetrov, Tyler W. Hughes +3
Anderson localization marks a halt of diffusive wave propagation in disordered systems. Despite extensive studies over the past 40 years, Anderson localization of light in three di…
Roadmap on Wavefront Shaping and deep imaging in complex media
Sylvain Gigan, Ori Katz, Hilton B. de Aguiar +42
The last decade has seen the development of a wide set of tools, such as wavefront shaping, computational or fundamental methods, that allow to understand and control light propaga…
Depth-Targeted Energy Deposition Deep Inside Scattering Media
Nicholas Bender, Alexey Yamilov, Arthur Goetschy +3
A grand challenge in fundamental physics and practical applications is overcoming wave diffusion to deposit energy into a target region deep inside a diffusive system. While it is…
Angular memory effect of transmission eigenchannels
Hasan Yılmaz, Chia Wei Hsu, Arthur Goetschy +4
The optical memory effect has emerged as a powerful tool for imaging through multiple-scattering media; however, the finite angular range of the memory effect limits the field of v…
Transverse localization of transmission eigenchannels
Hasan Yılmaz, Chia Wei Hsu, Alexey Yamilov +1
Transmission eigenchannels are building blocks of coherent wave transport in diffusive media, and selective excitation of individual eigenchannels can lead to diverse transport beh…
Enhancing light transmission through a random medium with inhomogeneous scattering and loss
Raktim Sarma, Alexey Yamilov, Hui Cao
We enhanced the total transmission of light through a disordered waveguide with spatially inhomogeneous scattering and loss by shaping the incident wavefront of a laser beam. Using…
Detection of a diffusive cloak via second-order statistics
Milan Koirala, Alexey Yamilov
We propose a scheme to detect the diffusive cloak proposed by Schittny et al [Science 345, 427 (2014)]. We exploit the fact that diffusion of light is an approximation that disrega…
Control of energy density inside disordered medium by coupling to open or closed channels
Raktim Sarma, Alexey Yamilov, Sasha Petrenko +2
We demonstrate experimentally an efficient control of light intensity distribution inside a random scattering system. The adaptive wavefront shaping technique is applied to a silic…
Shape-dependence of transmission, reflection and absorption eigenvalue densities in disordered waveguides with dissipation
A. Yamilov, S. Petrenko, R. Sarma +1
The universal bimodal distribution of transmission eigenvalues in lossless diffusive systems un- derpins such celebrated phenomena as universal conductance fluctuations, quantum sh…
Control of mesoscopic transport by modifying transmission channels in opaque media
Raktim Sarma, Alexey Yamilov, Seng Fatt Liew +2
While controlling particle diffusion in a confined geometry is a popular approach taken by both natural and artificial systems, it has not been widely adopted for controlling light…
Using geometry to manipulate long-range correlation of light inside disordered media
Raktim Sarma, Alexey Yamilov, Pauf Neupane +1
We demonstrate experimentally that long-range intensity correlation for light propagating inside random photonic waveguides can be modified by changing the shape of the waveguide.…
Control of Light Diffusion in a Disordered Photonic Waveguide
Raktim Sarma, Timofey Golubev, Alexey Yamilov +1
We control the diffusion of light in a disordered photonic waveguide by modulating the waveguide geometry. In a single waveguide of varying cross-section, the diffusion coefficient…
Probing Long-Range Intensity Correlations inside Disordered Photonic Nanostructures
Raktim Sarma, Alexey Yamilov, Pauf Neupane +2
We report direct observation of the development of long-range spatial intensity correlations and the growth of intensity fluctuations inside the random media. We fabricated quasi-t…
Position-dependent diffusion of light in disordered waveguides
Alexey G. Yamilov, Raktim Sarma, Brandon Redding +3
Diffusion has been widely used to describe a random walk of particles or waves, and it requires only one parameter -- the diffusion constant. For waves, however, diffusion is an ap…
Interplay between localization and absorption in disordered waveguides
Alexey G. Yamilov, Ben Payne
This work presents results of ab-initio simulations of continuous wave transport in disordered absorbing waveguides. Wave interference effects cause deviations from diffusive pictu…