TY - JOUR

T1 - Spectral and angular correlations in disordered wave guides

AU - Kogan, Eugene

AU - Kaveh, Moshe

PY - 1992/3/2

Y1 - 1992/3/2

N2 - We study the intensity-intensity auto-correlation function of a disordered medium as a simultaneous function of the wave frequency change Δω, the change in incident wave vector Δqa and the change in scattered wave vector Δqb. For a restricted geometry such as a long narrow disordered wave guide, we find that the auto-correlation function C(Δω, Δqa, Δqb) decouples in the following way: C(Δω, Δqa, Δqb)=C1(Δω)F(Δqa)F(Δqb)+C2(Δω)[F(Δq a)+F(Δqb)], where C1(Δω) and C2(Δω) are the short-range and the long-range spectral auto-correlation functions, respectively, and F is a geometrical form factor. When the width of the wave guide becomes larger than its length the decoupling breaks down.

AB - We study the intensity-intensity auto-correlation function of a disordered medium as a simultaneous function of the wave frequency change Δω, the change in incident wave vector Δqa and the change in scattered wave vector Δqb. For a restricted geometry such as a long narrow disordered wave guide, we find that the auto-correlation function C(Δω, Δqa, Δqb) decouples in the following way: C(Δω, Δqa, Δqb)=C1(Δω)F(Δqa)F(Δqb)+C2(Δω)[F(Δq a)+F(Δqb)], where C1(Δω) and C2(Δω) are the short-range and the long-range spectral auto-correlation functions, respectively, and F is a geometrical form factor. When the width of the wave guide becomes larger than its length the decoupling breaks down.

UR - http://www.scopus.com/inward/record.url?scp=44049122290&partnerID=8YFLogxK

U2 - 10.1016/0375-9601(92)90012-b

DO - 10.1016/0375-9601(92)90012-b

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AN - SCOPUS:44049122290

SN - 0375-9601

VL - 162

SP - 493

EP - 496

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 6

ER -