Photonicsguy.ca
https://www.photonicsguy.ca/
2026-04-06T22:34:18+00:00
Photonicsguy.ca
https://www.photonicsguy.ca/
https://www.photonicsguy.ca/_media/wiki/dokuwiki.svg
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2014-11-13T18:50:14+00:00
Anonymous (anonymous@undisclosed.example.com)
Ferrofluid
https://www.photonicsguy.ca/projects/ferrofluid?rev=1415904614&do=diff
Ferrofluid
Followed the directions from here.
View some pictures here,
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<table style=“width:194px;”><tr><td align=“center” style=“height:194px;background:url(<http://picasaweb.google.com/f/img/transparent_album_background.gif>) no-repeat left”><a href=“<http://picasaweb.google.ca/photonicsguy/Ferrofluid#>”><img src=“<http://lh6.ggpht.com/_o8vuO8ku2Bo/R3CmoXghZGE/AAAAAAAADVI/zftZMUTQdNU/s160-c/Ferrofluid.jpg>” width=“160” height=“160
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2014-11-13T18:50:14+00:00
Anonymous (anonymous@undisclosed.example.com)
Transmission Holograms
https://www.photonicsguy.ca/projects/holograms?rev=1415904614&do=diff
Transmission Holograms
Exposure
Need <m>110 \mu Jcm^-2</m> on holographic plate.
Measured <m>0.3 \mu Wcm^-2</m> with power meter.
<m>{110 \mu Jcm^-2}/{0.3 \mu Wcm^-2}=367s=6 minutes</m>
Assuming measurement error with power meter, shortening the exposure time,