期刊
PHYSICAL REVIEW A
卷 81, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.81.053804
关键词
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资金
- EU [NMP3-SL-2008-214107]
- French ANR [ANR-06-BLAN-0096]
- Agence Nationale de la Recherche (ANR) [ANR-06-BLAN-0096] Funding Source: Agence Nationale de la Recherche (ANR)
At subwavelength distance from the exit surface of a disordered medium, speckle patterns generated by multiple scattering of waves exhibit nonuniversal near-field correlations. A calculation of the field spatial correlation function shows that the correlation length is driven by the microscopic structure of the medium. The averaged speckle spot size can be smaller than the wavelength, even for nonresonant dielectric media.
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