Natural Science Forum / Physics / Optics / October 2004

I know a lot of progress has been made in diode lasers. But I am looking
for a 488nm diode approx 10-15 mW hopefully pen sized. I am not sure if
any exist at least.

I went to the SP website to get a data sheet for some SCT100-808-F2-01 open
heatsink 808nm diodes I own (I keep forgetting which terminal is the cathode
each time I put them away for a half year).  I noticed they do not have this
part anymore, but they have the SCT100-808-M2-01, ...

I have broken my laser module yesterday, the IR diode seems to be ok,
I can see a light with my digital camera, but it seems me abnormal
that I don't feel warm they I fire it very close to my finger.
The green beam was ~100mW, it was stinging my finger and burning black

I wanna buy one DPSS from those Chinese. Do you have experience with
them who may be better? What are their prices now for 100/200mw?
Any one to help is greatly appreciated. Thanks in advance.
Jasson

I am a mechanical engineering student at Oregon State University and plan to
build a high power laser (20 Watt CuBr) as my senior project.  I have been
researching the design for a few years and have solutions for everything
vacuum and mechanically related.  The power supply is ...

this is just a test  it is only a test for the next 60 seconds...   (
enter that awful tone) EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE...
seeing if I have my news send right...
SD

Suggestions will be appreciated of a source for wide-angle of fisheye
lens with the image size ~16mm (efl ~5mm or so).  C-mount or longer
working distance.
TIA

Hello, I am looking for a 355 nm cw laser.  A lot of what I find is
quasi-cw and that doesn't work for my application.
In my searches it seems that HeCd may have a line at 354 which may be
close enough.  It seems like 325 is a preferred HeCd UV line.  Can

Recently, there were some inquiries here about the optical data of
diamond and cubic zirconia. I have just found on Google that pure
silicon carbide, as the material Moissanite, is also transparent, and
has an index of refraction above 2.

This is on topic because you need to use your eyes to see the Moon and
eyes is optics. :-)
I just saw the cresent moon too and it was soooooooooo coooooool.
It reminded me that about every 28 days, the moon completes one

Hello, everyone,
when I wanted to take SEM pictures of a Au-coated ceramic surface, I
often encounter one problem. I used a higher magnification image to
get a better focus. When I turned down to the desired (lower)

I recently ordered some holographic diffraction film for use in my students'
projects. My intentions were to overlay the film over top of designs and
have a multi-spectral, vibrant effect that is visible as you moved your head
from side to side.

Found this: www.mylaserpage.de
Use google translate if needed.  Looks like it may be worth the price.
Anyone have any comments?
Thanks,

Its legal, it isn't stollen. I wrote it. $49.00 buys all.
www.westcoastengineering.com

Do higher-power argon lasers need de-ionized (non-conductive) water
and/or water chillers for cooling, or can you use 'open loop' city
water or other sources?