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<DIV>Hi Gaters,</DIV>
<DIV> </DIV>
<DIV>I want to simulate optical photons transmitting from one volume to
another, and the surface between the two volumes can be polished
or rough. So I need to specify the surface in Surfaces.xml.
My question is: what are the type and finish in Surfaces.xml? How can
I specify the surface roughness?</DIV>
<DIV> </DIV>
<DIV>I used the following definition but failed</DIV>
<DIV> </DIV>
<DIV>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-spacerun: yes"> </SPAN><surface name="rough"
type="dielectric_dielectric" sigmaalpha="6.0" finish="ground"><?xml:namespace
prefix = "o" ns = "urn:schemas-microsoft-com:office:office"
/><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-spacerun: yes">
</SPAN><propertiestable><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-spacerun: yes">
</SPAN><propertyvector name="SPECULARLOBECONSTANT"
energyunit="eV"><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-tab-count: 1"> </SPAN><ve energy="1.84"
value="1"/><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-tab-count: 1"> </SPAN><ve energy="4.08"
value="1"/><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-spacerun: yes">
</SPAN></propertyvector><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-spacerun: yes">
</SPAN><propertyvector name="SPECULARSPIKECONSTANT"
energyunit="eV"><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-tab-count: 1"> </SPAN><ve energy="1.84"
value="0"/><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-tab-count: 1"> </SPAN><ve energy="4.08"
value="0"/><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-spacerun: yes">
</SPAN></propertyvector><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-spacerun: yes">
</SPAN><propertyvector name="BACKSCATTERCONSTANT"
energyunit="eV"><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-tab-count: 1"> </SPAN><ve energy="1.84"
value="0"/><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-tab-count: 1"> </SPAN><ve energy="4.08"
value="0"/><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-spacerun: yes">
</SPAN></propertyvector><o:p></o:p></SPAN></P>
<P class=MsoNormal
style="TEXT-ALIGN: left; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none"
align=left><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-spacerun: yes">
</SPAN></propertiestable><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 宋体; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ansi-language: ZH-CN"><SPAN
style="mso-spacerun: yes"> </SPAN></surface></SPAN><SPAN
lang=EN-US><o:p></o:p></SPAN></P><!--EndFragment--></DIV>
<DIV><SPAN></SPAN> </DIV>
<DIV><SPAN>Any help is appreciated,</SPAN></DIV>
<DIV><SPAN></SPAN> </DIV>
<DIV><SPAN>Han</SPAN></DIV></BODY></HTML>