Re: Star Hopping, green laser pointers

[Larry Smith <larry.smith@SNOW.EDU>]

At 1:35 PM -0400 10/11/02, Chuck Britton wrote:
> Just a curiosity question:
>
> A few years ago the green diode laser pointers were actually an IR
> laser followed by a frequency-doubling crystal. They blinked at a
> steady fast rate - to let the doubling crystal cool?
>
> Are these newer ones flickering or steady. Sweep it across a surface.
> Is the line continuous or interrupted?
> At 9:04 AM -0600 10/11/02, Larry Smith wrote concerning green laser
> pointers http://www.skypointer.net/.:

Steady beam, but they still use a doubling crystal (or two) and say they'll
overheat if you leave them on for long periods of time.  The website
explains their operation.

Larry

This posting is the position of the writer, not that of SUNY-BSC, NAU or the AAPT.