Related Experiment Video
Updated: Aug 18, 2026

Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light
Published on: July 29, 2013
Optical necklace states in Anderson localized 1D systems
Jacopo Bertolotti1, Stefano Gottardo, Diederik S Wiersma
1European Laboratory for Nonlinear Spectroscopy and INFM, 50019 Sesto Fiorentino, Florence, Italy.
Abstract:
We report on the observation of nonlocalized modes or necklace states of light waves in disordered systems in the Anderson localized regime. The samples consist of positional-disordered binary multilayer systems. Anderson localized modes manifest themselves as narrow high-transmission peaks in the transmission spectrum, whereas the average of the logarithm of the transmission coefficient decreases linearly with thickness. Optical necklace states are observed as modes with a characteristic multiresonance time response and relatively fast decay time.
Related Concept Videos
One-Degree-of-Freedom System
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
First Law: Particles in One-dimensional Equilibrium
¹H NMR: Interpreting Distorted and Overlapping Signals
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are slanted or...
First Law: Particles in Two-dimensional Equilibrium
Newton's first law tells us about the...
Second Order systems I
By reinterpreting the system, one can derive the closed-loop transfer function, which...
IR Absorption Frequency: Delocalization
In IR spectroscopy,...

