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refractive index

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003027
EISBN: 978-1-62708-200-6
...Abstract Abstract Optical testing of plastics includes characterization of materials and analysis of optical components. This article focuses on procedures for testing various characteristics of optical components, including transmission and haze, yellowness, refractive index, birefringence...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006662
EISBN: 978-1-62708-213-6
...(a) 1000 … 2.23 1.16 Germanium(b) 3000 0.40 0.22 0.17 Germanium(b) 1000 1.20 0.66 0.51 (a) Refractive index, n = 2.35. (b) Refractive index, n = 4.0 Compositional analysis of polystyrene (PS)/ poly-2,6-dimethyl-1,4-phenylene oxide (2MPPO) polyblend films by least-squares...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003066
EISBN: 978-1-62708-200-6
...Properties of selected commercial glasses Table 1 Properties of selected commercial glasses Glass Application Compound, wt% Thermal expansion, ×10 7 /°C Softening point Density, g/cm 3 Refractive index Young's modulus SiO 2 Na 2 O + K 2 O CaO + MgO B 2 O 3 Al 2 O 3 °C...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003753
EISBN: 978-1-62708-177-1
... on optics) the relationship: (Eq 4) r 1 = d 1 2 = 0.61 λ μ sin α where λ is the wavelength of the light, and μ is the refractive index of the medium between the object and the objective lens. The product, μ sin α, is usually called the numerical aperture . In order...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005630
EISBN: 978-1-62708-174-0
... in the beam tube must not be stagnant. Turbulence must be maintained by the purge gas. Heating of the beam tube atmosphere by the passing laser beam will allow thermal gradients and local index of refraction changes. This effect will disrupt the beam propagation and beam properties ( Ref 9 , 10...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001735
EISBN: 978-1-62708-178-8
... material, angle of incidence, and wavenumber Material Wavenumber, cm 1 d p , μm 30° 45° 60° KRS-5 (a) 3000 … 0.74 0.33 KRS-5 (a) 1000 … 2.23 1.16 Germanium (b) 3000 0.40 0.22 0.17 Germanium (b) 1000 1.20 0.66 0.51 (a) Refractive index, n = 2.35...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003067
EISBN: 978-1-62708-200-6
... mechanical properties (strength, toughness, and hardness), chemical properties (acid, base, and weather durability), and physical properties (thermal expansion, softening temperature, density, refractive index, light transmittance as a function of wavelength, and light scattering). Often, the properties...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001090
EISBN: 978-1-62708-162-7
... Optical properties of germanium Table 2 Optical properties of germanium Wavelength, μm Refractive index at 300 K (80 °F) Absorption coefficient, cm −1 Through 1 cm thickness (uncoated) Reflection, % Absorption, % Transmission, % 1.8 4.134 7.0 37.3 62.7 0.0 1.9 4.120 0.68...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001316
EISBN: 978-1-62708-170-2
... to obtain low expansion, smooth surface, and maturing of the glaze over a wider firing range. Litharge imparts low surface tension for a smooth surface and a high index of refraction that results in a brilliant appearance. Glazes containing litharge heal over defects in the glaze surface more readily...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006051
EISBN: 978-1-62708-172-6
... are used to increase the opacity or hiding power of a coating. An unpigmented coating will appear clear even if it contains a mixture of resins, because the refractive indices of most resins are very similar, ranging from 1.5 to 1.6. When a finely divided insoluble pigment with a refractive index of 2...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005731
EISBN: 978-1-62708-171-9
... 2 ). The scattering intensity was calculated as a series of expressions, each a function of various scattering angles, the difference between the refractive indexes of the particle sphere and the continuum, the wavelength of the incident radiation, and the diameter of the sphere. As sphere...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003749
EISBN: 978-1-62708-177-1
... k z 0.3 0.215 0.25 0.25 0.25 Iron n z 2.61 2.65 2.65 2.65 2.6 k z 0.35 0.3 0.25 0.175 0.1 Data measured with glass substrates. n z is the refractive index; k z is the absorption coefficient. Description of miscellaneous chemicals used in metallographic...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003049
EISBN: 978-1-62708-200-6
... behavior, hardness, tribological properties such as abrasion resistance and friction, chemical resistance, and thermal shock resistance. Optical absorption and index of refraction may also be important where appearance is a consideration, and electrical properties may be important in a high-temperature...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003353
EISBN: 978-1-62708-195-5
... >2300 >4170 1670 3038 … … … … … … 2.15 Fiber Coefficient of linear expansion, 10 –6 /ºC Specific heat, cal/g/ºC Dielectric constant at room temperature and 1 MHz Dielectric strength, kV/cm Volume resistivity at room temperature log 10 (Ω cm) Refractive index (bulk) Weight...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
... than to stress whitening. Stress whitening is a generic term describing many different microscopic phenomena that produce a cloudy, foggy, or whitened appearance in transparent or translucent polymers in stress. The cloudy appearance is the result of a localized change in polymer refractive index...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006401
EISBN: 978-1-62708-192-4
... Hydrostatic Lubrication Lubricant Materials Properties of Lubricants Tribological Evaluation of Lubricants Viscosity Oxidation Stability Pour Point Flash Point Surface Tension Refractive Index Neutralization Number Carbon Residue Impurity Contents Stribeck Test Four...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002464
EISBN: 978-1-62708-194-8
... on dopants. Transparency, opacity, haze, and color are all important characteristics of plastics. Optical clarity is achieved when light is able to pass relatively unimpeded through a polymer sample. This is usually defined by the refractive index, n , which is shown in Fig. 23 and given by: (Eq 10...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001326
EISBN: 978-1-62708-170-2
... Acidity ASTM D 1613 Refractive index ASTM D 1218 Density ASTM D 1475 Cleaning Efficiency Compatibility Corrosion Potential Vapor Pressure Volatile Organic Compounds Flash Points Odor Dry Residue Other Properties The cleaning efficiency property of the wipe...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006506
EISBN: 978-1-62708-207-5
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009076
EISBN: 978-1-62708-177-1
... the sample features at higher magnification. Color and/or light-intensity effects shown in the image are related to the rate of changes in refractive index and the thickness of the specimen, or both. Optical path differences are sometimes referred to as optical thickness or optical color staining ( Ref 5...