Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



Any company sell UV lasers?

The Purple Death

New member
Joined
Jan 27, 2019
Messages
18
Points
3
I'm not looking for something to burn my house down with, just your basic laser pointer.
405nm is advertised as a violet laser.
I can't find something lower.
Thanks!
 
  • Like
Reactions: Hap



Hap

Super Moderator
Staff member
Joined
Sep 5, 2013
Messages
8,625
Points
113
Finding something in the UV range and having it fit into a laser pointer for a reasonable cost is going to be pretty though unfortunately. UV lasers do exist, but their cost are prohibitively expensive, were talking upwards of a few thousand dollars! Most of them used in scientific settings.

-Alex
 

diachi

Well-known member
Joined
Feb 22, 2008
Messages
9,793
Points
113
Your only option for a pointer is a UV diode, which is going to cost at least a couple thousand dollars from most sources.

https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=5400

You can get lucky and find a used UV DPSS/Metal Vapour/Gas laser on eBay for a couple hundred dollars but those are nowhere close to portable. My 355nm DPSS laser probably weighs about 40lbs, if not more. My 337nm N2 laser is smaller but still far from portable.
 

The Purple Death

New member
Joined
Jan 27, 2019
Messages
18
Points
3
Holy cow, what materials/manufacturing technique make them so expensive? Or is it just that companies can charge that price?
For $4000 I could (try) to build a laser at home using jade, but it would not be UV.
 
  • Like
Reactions: Hap

Hap

Super Moderator
Staff member
Joined
Sep 5, 2013
Messages
8,625
Points
113
Holy cow, what materials/manufacturing technique make them so expensive? Or is it just that companies can charge that price?
For $4000 I could (try) to build a laser at home using jade, but it would not be UV.
Just lack of any real demand outside of scientific research which leads to high prices. :)

-Alex
 

paul1598419

Well-known member
Joined
Sep 20, 2013
Messages
17,460
Points
113
Thorlabs is a great place to find quality optics, but not the first place I'd go to if looking for a specific diode. These are so expensive because there is hardly any demand for them.

Nice to see you again, Alex. I hope your studies are going well.
 
Last edited:

Hap

Super Moderator
Staff member
Joined
Sep 5, 2013
Messages
8,625
Points
113
Thorlabs in a great place to find quality optics, but not the first place I'd go to if looking for a specific diode. These are so expensive because there is hardly any demand for them.

Nice to see you again, Alex. I hope your studies are going well.
Everything is going well for now paul! :)

-Alex
 

Wolfwood

Member
Joined
Apr 21, 2012
Messages
60
Points
8
i have a good friend looking for a UV laser for etching PCBs. this is going to break his little heart.
 

Alaskan

Well-known member
LPF Site Supporter
Joined
Jan 29, 2014
Messages
12,318
Points
113
Styropyro found a UV diode surplus on ebay inside a device, it even worked, for awhile, until he toasted it. You could get lucky like he did and find one cheap that way, but I've been looking and haven't come across one yet myself.
 

TinLethax

Active member
Joined
Jul 19, 2018
Messages
116
Points
28
I known that if laser diode cool down below the 0 degree celsius will shift down the wavelenght. Styropyro and Brainiac had done something like this. Styropyro dip the red laser into the container filled with LN2. Brainiac put the cheap laser pen pointer (405,532 and 650)in fridge (4 degree celsius). But it will shorten lifetime of laser diode.putting in pointer pen is impossible but if you create a bigger host and put 10x10mm TEC cooler. I hope you will get (nearly) what you want.
 

paul1598419

Well-known member
Joined
Sep 20, 2013
Messages
17,460
Points
113
It depends on the diode's composition whether you will get a large shift in WL by cooling it. A 532nm laser is not a direct diode laser, but a DPSS one. You can't shift its WL by freezing it. I believe the red diodes are the ones that shift the most from cooling, but I haven't thought about it for awhile.
 

TinLethax

Active member
Joined
Jul 19, 2018
Messages
116
Points
28
I really want to try with my Sharp 515nm. Unfortunately I can't find the source for LN2.
 

Wolfwood

Member
Joined
Apr 21, 2012
Messages
60
Points
8
Check out local welding and gas supply shops for exotic gasses lots of times you can find liquid nitrogen at those places.

Thanks for the tips guys, i dont know if that will be a viable option for sustainted pcb cutting sessions but i will pass the info along.
 




Top