Characterizing random one-dimensional media with an embedded reflector via scattered waves

被引：0
|
作者：
Huang, Yiming [1 ,2 ]
Ma, Xujun [1 ,2 ]
Genack, Azriel Z. [1 ,2 ]
Gopar, Victor A. [3 ,4 ]
机构：
[1] CUNY Queens Coll, Departinent Phys, Flushing, NY 11367 USA
[2] CUNY, Grad Ctr, Flushing, NY 11367 USA
[3] Univ Zaragoza, Dept Fis Teor, Pedro Cerbuna 12, E-50009 Zaragoza, Spain
[4] Univ Zaragoza, BIFI, Pedro Cerbuna 12, E-50009 Zaragoza, Spain
来源：
PHYSICAL REVIEW B | 2021年 / 104卷 / 10期
基金：
美国国家科学基金会;
关键词：
INTERNAL-REFLECTION; SCALING THEORY; DELAY-TIME; TRANSMISSION; RESISTANCE; DIFFUSION; FLUCTUATIONS; LOCALIZATION; TRANSPORT; LIGHT;
D O I：
10.1103/PhysRevB.104.104204
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We show in random matrix theory, microwave measurements, and computer simulations that the mean free path of a random medium and the strength and position of an embedded reflector can be determined from radiation scattered by the system. The mean free path and strength of the reflector are determined from the statistics of transmission. The statistics of transmission are independent of the position of the reflector. The reflector's position can be found, however, from the average dwell time for waves incident from one side of the sample.
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页数：6
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