532nm 1/2 waveplate for trade ............

dave battin · Post by **dave battin** » Thu Dec 10, 2009 3:51 pm

I have a few glass 1/2 waveplates to trade for any "home made hologram" these retarders are sealed in glass and do not have AR coatings, combined this with a polarizing cube, and it will make a very good variable output beam splitter. please PM with interests

Phil is correct in his following post!

I'll even include two waveplates (for two different holograms), so now you can rotate your beam as it exits the beamsplitter ! :doh:

142laser · Post by **142laser** » Thu Dec 10, 2009 3:56 pm

Hi Dave,
Even with no polarizing beamsplitter cube these will rotate the plane of polarization of polarized 532 nm lasers leaving the laser in place. If you rotate the optic by theta the axis changes by twice that angle I believe....1/2 turn would sweep it all the way around. Good to have.

Danny Bee · Post by **Danny Bee** » Fri Dec 11, 2009 3:19 am

oooooo cool i want one dave

Justin W · Post by **Justin W** » Sat Dec 26, 2009 5:53 pm

they look great D!
Still got any?

dave battin · Post by **dave battin** » Sun Dec 27, 2009 3:18 pm

Justin W wrote:they look great D!
Still got any?

Heck yes! i have a bunch left to sell , if anyone want to buy one @ $22 each send me a PM,and by the way, they also work in the 632 range too ............

ps that includes worldwide shipping too.

follow this link to buy it thru paypal

https://www.paypal.com/cgi-bin/webscr?c ... d=10763759

dave battin · Post by **dave battin** » Mon Feb 22, 2010 4:40 pm

the above link is dead ,but i always have more 1/2 wave plates to offer , just PM me here on the forum. hey Ron did you get a chance to try out your new wave plates and polarising cube?

rzeheb · Post by **rzeheb** » Mon Feb 22, 2010 9:42 pm

dave battin wrote:hey Ron did you get a chance to try out your new wave plates and polarising cube?

Hi Dave,
Not yet. I had the mail held while I was away and still waiting for the big delivery. Can't wait to get them tho. They will definitely be a BIG help. No more having to rotate my laser every time I switch from shooting H1s to H2s. Also, much thanks for the on-site tutorial on shooting DCG. I showed the holos you gave me to a very appreciative crowd of in-laws to accompanying oohs and ahs.

Ron

rzeheb · Post by **rzeheb** » Tue Feb 23, 2010 4:50 pm

O.K. Waveplates and cube received. Thanks Dave. Will try them out as soon as I can.

rzeheb · Post by **rzeheb** » Fri Feb 26, 2010 3:32 am

Dave, do you have any recommendations on how to mount the waveplates? I need a way to hold them and still be able to rotate them about a central axis. TIA.

Ron

dave battin · Post by **dave battin** » Fri Feb 26, 2010 11:37 am

hi ron, an easy and cheap version is to using only two 3/4" PVC fittings , get a union type fitting and a matching threaded plug,
drill out a 3/8" hole in the plug, and tape your waveplate to threaded plug and insert into your mounted(on a post)union fitting, i think you get the idea. Its too bad as i just discarded the one i made a few years back, a picture would do wonders now!