Effects of Roughness on Reflection of Monochromatic Light.
If the scale of surface roughness is on the order of the wavelength of incident light, traditional optics methods like ray tracing and physical optics fail to adequately model reflectance. In this project, boundary integral techniques are used to compute the effects of roughness on two-dimensional c...
| Publicado en: | Journal of the Utah Academy of Sciences, Arts & Letters Vol. 94; pp. 335 - 347 |
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| Autores principales: | , |
| Formato: | Artículo |
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Utah Academy of Sciences, Arts & Letters
2017
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=129554519&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 129554519 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: B0JA jtl: Journal of the Utah Academy of Sciences, Arts & Letters maglogo: N pubinfo: dt: 2017 vid: 94 pid: 59066 pub: Utah Academy of Sciences, Arts & Letters artinfo: ui: 129554519 ppf: 335 ppct: 12 formats: fmt: @attributes: type: P size: 1.7MB tig: atl: Effects of Roughness on Reflection of Monochromatic Light. aug: au: Thevenin, Spencer Turley, R. Steven affil: Brigham Young University su: Surface roughness Monochromatic light Reflectance Shear waves Light scattering sug: subj: Surface roughness Monochromatic light Reflectance Shear waves Light scattering ab: If the scale of surface roughness is on the order of the wavelength of incident light, traditional optics methods like ray tracing and physical optics fail to adequately model reflectance. In this project, boundary integral techniques are used to compute the effects of roughness on two-dimensional conducting surfaces. Reflectance calculations for transverse-magnetic waves on a perfect conductor in two dimensions are analyzed in depth to model the effects of scattering from surface roughness. Root mean squared surface roughness more than a hundredth the wavelength of the incident beam is noticeable and anything larger than a tenth the wavelength dominates the reflectance. These calculations allow for comparison with previous approaches-- such as the scalar correction factors of Debye-Waller--at various spatial frequencies. The Debye-Waller factor models the effects of smaller roughness well but loses precision as roughness increases. The effects of spatial frequencies are also analyzed and compared with the current work of Stearns in showing additional surface parameters affecting roughness. The results of altering spatial frequency support the work of Stearns suggesting additional parameters like spatial frequency are factors that affect overall reflectance. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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