Measurements and predictions of light scattering by clear coatings

被引：18

作者：

McKnight, ME ^{[1
]}

Vorburger, TV ^{[1
]}

Marx, E ^{[1
]}

Nadal, ME ^{[1
]}

Barnes, PY ^{[1
]}

Galler, MA ^{[1
]}

机构：

[1] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

来源：

APPLIED OPTICS | 2001年 / 40卷 / 13期

关键词：

D O I：

10.1364/AO.40.002159

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Comparisons are made between calculated and measured angle-resolved light-scattering distributions from clear dielectric isotropic epoxy coatings over a range of rms roughness conditions, resulting in strongly specular scattering to diffuse scattering characteristics. Calculated distributions are derived from topography measurements performed with interferometric microscopes. Two methods of calculation are used. One determines the intensity of scattered light waves with a phase integral in the Kirchhoff approximation. The other is based on the reflection of light rays by locally flat surfaces. The angle-resolved scattering distributions for the coatings are measured with the spectral trifunction automated reference reflectometer (STARR) developed by the National Institute of Standards and Technology. Comparisons between measured and calculated results are shown for three surfaces with rms roughness values of approximately 3, 150, and 800 nm for an angle of incidence of 20 degrees.

引用

页码：2159 / 2168

页数：10

共 24 条

[11] VECTOR SCATTERING THEORY [J].

ELSON, JM ;

BENNETT, JM .

OPTICAL ENGINEERING, 1979, 18 (02) :116-124

[12] Spin coating of thin and ultrathin polymer films [J].

Hall, DB ;

Underhill, P ;

Torkelson, JM .

POLYMER ENGINEERING AND SCIENCE, 1998, 38 (12) :2039-2045

[13]

HUNT FY, 2001, ACS S SERIES

[14] INTEGRAL-EQUATION FOR SCATTERING BY A DIELECTRIC [J].

MARX, E .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1984, 32 (02) :166-172

[15]

MARX E, 1993, P SOC PHOTO-OPT INS, V1995, P2

[16] LIGHT-SCATTERING BY SINUSOIDAL SURFACES - ILLUMINATION WINDOWS AND HARMONICS IN STANDARDS [J].

MARX, E ;

LETTIERI, TR ;

VORBURGER, TV .

APPLIED OPTICS, 1995, 34 (07) :1269-1277

[17]

MAYNARD M, 1998, USA TODAY 1026, pB12

[18] Advanced methods and models for describing coating appearance [J].

McKnight, ME ;

Martin, JW .

PROGRESS IN ORGANIC COATINGS, 1998, 34 (1-4) :152-159

[19]

NICODEMUS FE, 1977, NATL BUR STANT US MO, V160

[20] NIST high accuracy reference reflectometer-spectrophotometer [J].

Proctor, JE ;

Barnes, PY .

JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, 1996, 101 (05) :619-627

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