Abstract
A frequency regime in which electromagnetic waves in a strongly disordered medium undergo Anderson localization in $d=3$ dimensions is suggested. In the presence of weak dissipation in $d=2+\ensuremath{\epsilon}$ it is shown that the renormalized energy absorption coefficient increases as the photon frequency $\ensuremath{\omega}$ approaches a mobility edge ${\ensuremath{\omega}}^{*}$ from the conducting side as $\ensuremath{\alpha}\ensuremath{\sim}{({\ensuremath{\omega}}^{*}\ensuremath{-}\ensuremath{\omega})}^{\ensuremath{-}\frac{(d\ensuremath{-}2)\ensuremath{\nu}}{2}}$, $\ensuremath{\nu}=\frac{1}{\ensuremath{\epsilon}}$. This mobility edge occurs at a frequency compatible with the Ioffe-Regel condition.
Keywords
OmegaPhysicsCondensed matter physicsElectromagnetic radiationAbsorption (acoustics)PhotonAbsorption edgeEnergy (signal processing)Photon energyAtomic physicsQuantum mechanicsOpticsBand gap
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Publication Info
- Year
- 1984
- Type
- article
- Volume
- 53
- Issue
- 22
- Pages
- 2169-2172
- Citations
- 937
- Access
- Closed
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Cite This
Sajeev John
(1984).
Electromagnetic Absorption in a Disordered Medium near a Photon Mobility Edge.
Physical Review Letters
, 53
(22)
, 2169-2172.
https://doi.org/10.1103/physrevlett.53.2169
Identifiers
- DOI
- 10.1103/physrevlett.53.2169