Home | Community | Message Board


Mycohaus
Please support our sponsors.

General Interest >> Science and Technology

Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Jump to first unread post. Pages: 1
OfflinetrendalM
tangential derivation
Male User Gallery

Registered: 04/17/01
Posts: 20,247
Loc: Ontario, Canada
Last seen: 2 hours, 51 minutes
Home-built laser
    #1434859 - 04/07/03 01:01 AM (14 years, 7 months ago)

Has anyone ever tried building one? Any success?

I've recently taken on the task of building my own. CO2 seems to be the easiest lasing medium to use, but for a first-time I kind of want something a little LESS powerful and with output in the visible spectrum. Any suggestions on a type I could start with?


--------------------
The story book's been read
And every line believed
Curriculum's been set
Logic is a threat
Reason searched and seized


BTC - 1KqrSHZ1C3NsQP4g3PkHhppBnhdgyXr6sB


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineShdwstr
FSRCanada
Male

Registered: 02/18/01
Posts: 2,156
Loc: Ontario, Canada
Last seen: 3 years, 11 months
Re: Home-built laser [Re: trendal]
    #1435021 - 04/07/03 02:12 AM (14 years, 7 months ago)

I built one many years ago (was trying holographic photography) it worked well, but the tube didn't last very long. I probably overheated it or something.
You might want to look into a laser diode in the visible range. The pulse supply would probably be less expensive too.


Post Extras: Print Post  Remind Me! Notify Moderator
Offlinegnrm23
Carpal Tunnel
Registered: 08/30/99
Posts: 6,481
Loc: n. e. OH, USSA
Last seen: 25 days, 2 hours
Re: Home-built laser [Re: trendal]
    #1435425 - 04/07/03 08:10 AM (14 years, 7 months ago)

laser diodes are quick & easy...
helium/neon gas tubes are in the visible range, & ya get to fiddle with the mirrors & all that (are you gonna blow your own glass & mix the gas & evacuate the tube, or buy the tube & optics ready-made?)...
organic dye/tunable lasers are a possibility as well...
optically pumped ruby-crytals are archaic, but still feasible (& you could use most of the same components as a maser, fwiw)
~
the public library has a few books on laser building & projects (or can get 'em for you thru interlibrary loan service), & there is an old (but still servicable) _scientific american_ reprint book on laser building & projects (modulating the beam for audio/video/data links; home holography, stuff like that...)
(& then there's the project that uses 4 speakers attached to a mirror & driven by a stereo system to make pretty laser-lissajous patterns on a wall or screen...
~
~


--------------------
old enough to know better
not old enough to care


Post Extras: Print Post  Remind Me! Notify Moderator
OfflinetrendalM
tangential derivation
Male User Gallery

Registered: 04/17/01
Posts: 20,247
Loc: Ontario, Canada
Last seen: 2 hours, 51 minutes
Re: Home-built laser [Re: gnrm23]
    #1435750 - 04/07/03 12:03 PM (14 years, 7 months ago)

Well I was thinking of either purchasing a Nd:YAG laser diode, or building another type (gas/dye) completely from scratch.

I'm one of those guys who has to do as MUCH of the actual construction as possible.

Buy all the parts? Pffft  :smirk:

From what I've read, Nd:YAG lasers look like a good starting point, as they can run at fairly safe power levels (1mW) and also can output in green. I like green lasers for some reason  :smirk:


--------------------
The story book's been read
And every line believed
Curriculum's been set
Logic is a threat
Reason searched and seized


BTC - 1KqrSHZ1C3NsQP4g3PkHhppBnhdgyXr6sB


Post Extras: Print Post  Remind Me! Notify Moderator
Anonymous

Re: Home-built laser [Re: trendal]
    #1435764 - 04/07/03 12:07 PM (14 years, 7 months ago)

what the fuck is it for?


Post Extras: Print Post  Remind Me! Notify Moderator
OfflinetrendalM
tangential derivation
Male User Gallery

Registered: 04/17/01
Posts: 20,247
Loc: Ontario, Canada
Last seen: 2 hours, 51 minutes
Re: Home-built laser [Re: ]
    #1435885 - 04/07/03 01:07 PM (14 years, 7 months ago)

Dunno. Just woke up one day with the urge to build a laser. Plus I've never built one before.  :smirk:


--------------------
The story book's been read
And every line believed
Curriculum's been set
Logic is a threat
Reason searched and seized


BTC - 1KqrSHZ1C3NsQP4g3PkHhppBnhdgyXr6sB


Edited by trendal (04/07/03 01:08 PM)


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineSeussA
Error: divide byzero

Folding@home Statistics
Registered: 04/27/01
Posts: 23,480
Loc: Caribbean
Last seen: 10 months, 13 days
Re: Home-built laser [Re: trendal]
    #1437044 - 04/07/03 07:56 PM (14 years, 7 months ago)

I built an edible laser when I was in HS. It was actually a nitrogen gas laser, which lases in the UV range. Because the UV wavelength is so small, compared to red or infrared, the need for optics is removed. Jello, with sodium florescene die (both edible, non-toxic) is pumped with UV and lases in the visible light range.

I got the instructions for this contraption out of an old Scientific America article, I think. Probably have to go back 20 to 30 years now to find it. They are very easy to build, pretty cheap, and fun to play with... just don't blind yourself. UV light is invisible to our eyes and can easily reflect when you least expect it.


--------------------
Just another spore in the wind.


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineShdwstr
FSRCanada
Male

Registered: 02/18/01
Posts: 2,156
Loc: Ontario, Canada
Last seen: 3 years, 11 months
Re: Home-built laser [Re: Seuss]
    #1439275 - 04/08/03 02:26 PM (14 years, 7 months ago)

Nice twist... Food that can cook the chef :wink:


Post Extras: Print Post  Remind Me! Notify Moderator
Jump to top. Pages: 1

General Interest >> Science and Technology

Similar ThreadsPosterViewsRepliesLast post
* Lasers: Incredibly useful....Just fucking cool! trendalM 2,188 18 11/17/03 11:54 PM
by Stein
* 50mW green laser safety
( 1 2 all )
funnybunny 4,539 21 06/16/07 06:56 PM
by funnybunny
* University of Michigan creates most intense laser automanM 814 5 02/20/08 07:21 AM
by Asante
* NASA research team successfully flies first laser-powered ai wingnutx 1,237 6 10/11/03 05:28 AM
by Le_Canard
* World's First X-ray Laser Powers Up snoot 423 1 04/23/09 05:19 AM
by Chespirito
* Lasers in the radio part of the spectrum... trendalM 853 7 03/23/08 09:41 AM
by koppie
* DVD laser lens cleaning dog 1,029 7 09/29/06 06:53 AM
by Seuss
* Laser from a barcode scanner trendalM 610 4 04/11/03 06:30 PM
by trendal

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Lana, trendal, automan
830 topic views. 0 members, 1 guests and 3 web crawlers are browsing this forum.
[ Toggle Favorite | Print Topic | Stats ]
Search this thread:
Phytoextractum
Please support our sponsors.

Copyright 1997-2017 Mind Media. Some rights reserved.

Generated in 0.018 seconds spending 0.003 seconds on 17 queries.