RE: Slow speed light and possible RP laser control implications?

From: Miller, Michael W (
Date: Mon Feb 22 1999 - 19:16:47 EET

38 mph? Maybe 38 mps (per second). At any rate, I wonder if such a technology could be used to control the wavelength of the light which in turn might make it possible to cure different areas to different properties.
Michael W Miller (
The Boeing Company MS 17-PE B-XT62
Propulsion Experimental Hardware 206-655-3289
Rapid Prototyping 655-4366 Lab 655-4365

> ----------
> From: Monica & Glenn Whiteside[]
> Reply To: Monica & Glenn Whiteside
> Sent: Sunday, February 21, 1999 4:31 PM
> To: Rapid Prototype Mailing List
> Subject: Slow speed light and possible RP laser control implications?
> Just read a very interesting article where a group of physicists at Rowland
> Institute for Science at Cambridge and Harvard University were able to slow
> the speed of light to a leisurely 38 mph by shooting a laser through
> extremely cold (-459.67 degrees below zero) sodium atoms (this high density
> group of atoms is called a Bose-Einstein condensate) which worked like
> "optical molasses" to slow the light down. The lead researcher, a Danish
> physicist named Lene Vestergaard Hau, envisioned improved communications
> technology, televison displays, even night-vision devices. The scientists
> believe it is possible to slow it 1,000 times further - to a crawl.
> I'm wondering what the implications of this would be to the RP industry,
> especialliy how it relates to the control of laser light used in processes
> like stereolithography. Would this also enable a more precise and accurate
> control of UV and/or infrared energy? Especially for creating extremely
> fine details? Speed up the laser for certain features and slow it down for
> others? Any further thoughts or ideas on this?
> Best Regards,
> Glenn Whiteside
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