Observation of transverse Anderson localization in an optical fiber

Karbasi, Salman; Mirr, Craig R.; Yarandi, Parisa Gandomkar; Frazier, Ryan J.; Köch, Karl; Mafi, Arash

doi:10.1364/ol.37.002304

Cited by 115 publications

(211 citation statements)

References 10 publications

(15 reference statements)

Supporting

Mentioning

196

Contrasting

Order By: Relevance

“…However, as the index differences increase, the confinement increases. These results are consistent with previous results 7,8 and will also have implications on imaging results, shown in Sec. 5.…”

Section: Application Of the Fast Fourier Transform Beamsupporting

confidence: 93%

“…6 Later, theoretical and experimental results were reported using an optical fiber consisting of a random array of smaller fibers, each having either a higher or lower index of refraction. [7][8][9][10][11] Experimental results agreed well with theoretical simulations.…”

Section: Introductionsupporting

confidence: 77%

“…Figure 2 shows the RMS intensity versus propagation distance where the step size was d 7,8 The beam broadens as it propagates but reaches a constant value that depends on the random array. The variation in the widths of the beams can be explained since the size of the input beam is roughly the same as the pixel size and the broadening effect depends strongly on the array of fibers that are locally excited by the input beam.…”

Section: Application Of the Fast Fourier Transform Beammentioning

confidence: 99%

See 2 more Smart Citations

Simulation of Anderson localization in a random fiber using a fast Fresnel diffraction algorithm

Davis

Cottrell

2016

Opt. Eng

View full text Add to dashboard Cite

Abstract. Anderson localization has been previously demonstrated both theoretically and experimentally for transmission of a Gaussian beam through long distances in an optical fiber consisting of a random array of smaller fibers, each having either a higher or lower refractive index. However, the computational times were extremely long. We show how to simulate these results using a fast Fresnel diffraction algorithm. In each iteration of this approach, the light passes through a phase mask, undergoes Fresnel diffraction over a small distance, and then passes through the same phase mask. We also show results where we use a binary amplitude mask at the input that selectively illuminates either the higher or the lower index fibers. Additionally, we examine imaging of various sized objects through these fibers. In all cases, our results are consistent with other computational methods and experimental results, but with a much reduced computational time. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

show abstract

Section: Application Of the Fast Fourier Transform Beamsupporting

confidence: 93%

Section: Introductionsupporting

confidence: 77%

Section: Application Of the Fast Fourier Transform Beammentioning

confidence: 99%

See 1 more Smart Citation

Simulation of Anderson localization in a random fiber using a fast Fresnel diffraction algorithm

Davis

Cottrell

2016

Opt. Eng

View full text Add to dashboard Cite

show abstract

“…This result is explained by a weak dependence of the mode's propagation constant and coupling strength on the radius of the nanowires. Equally important is the potential implication of this result for the design of AL-based plasmonic nanodevices, as one may expect that their properties depend weakly on the particular realization of the system randomness [29].…”

Section: Resultsmentioning

confidence: 99%

Anderson localization at the subwavelength scale for surface plasmon polaritons in disordered arrays of metallic nanowires

et al. 2014

View full text Add to dashboard Cite

Using one-and two-dimensional random arrays of coupled metallic nanowires as a generic example of disordered plasmonic systems, we demonstrate that the structural disorder induces localization of light in these nanostructures at a deep-subwavelength scale. The ab initio analysis is based on solving the complete set of three-dimensional Maxwell equations. We find that random variations of the radius of coupled plasmonic nanowires are sufficient to induce the Anderson localization (AL) of surface plasmon polaritons (SPPs), the size of these trapped modes being significantly smaller than the optical wavelength. Remarkably, the optical-gain coefficient, needed to compensate for losses in the plasmonic components of the system, is much smaller than the loss coefficient of the metal, which is obviously beneficial for the realization of the AL in plasmonic nanostructures. The dynamics of excitation and propagation of the Anderson-localized SPPs are addressed too.

show abstract

“…These structures are also reliable prototypes for studying the transverse Anderson localization in which light confinement occurs in the presence of disorder in the plane perpendicular to the direction of light propagation. 1, 16,17 The problem of light transport and localization in disordered systems is gaining attention also for practical applications. 2D light confinement in disordered media can be used for improving the absorption in thin-film solar-cells by patterning the absorptive layer with a random distribution of holes as well as with scattering elements randomly placed on the external surface.…”

mentioning

confidence: 99%