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Looking for a 495nm blue laser - low power

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Stevesteve

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Hi,

I am looking for a blue laser for a scientific application.

Ideally about 495nm [EDIT:488nm would be fine], either a laser diode on it's own or ideally in a small laser pointer device.

Any ideas?

Cheers,
Steve
 
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I dont think you will find anything cost effective at that wavelength. Their are some 488nm Diodes. But you might need a bank loan to buy one. Probably the only option is a DPSS laser but it will still be costly.
 
Stevesteve said:
Hi,

I am looking for a blue laser for a scientific application.

Ideally about 495nm [EDIT:488nm would be fine], either a laser diode on it's own or ideally in a small laser pointer device.

Any ideas?

Cheers,
Steve
Click to expand...

What's your budget?
 
Or Viasho:
http://en.viasho.com/

They should have 491 nm. But page says under construction. You might ask them.

Edit: If you can go with shorter wavelength even 473 nm Jet Lasers might do a job at quite low cost. You might see my review (or other reviews on LPF) - link is in my signature. It is awesome laser. ;)

BTW One artwork in my review is unavailable at the moment, I'll fix it when I'm back home during weekend - sorry.
 
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488 diodes are probably your cheapest option, and those are $1k+
495nm doesn't even exist as far as I know.
 
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A 495nm laser is actually getting close to green/blue in color. It isn't a common wavelength so if you find one it will be costly. Likely be a DPSS laser and not a diode.
 
488 is the primary color for argon lasers. you can often pick up low powered air cooled systems off ebay for 100$ or so.

Stevesteve said:
Hi,

I am looking for a blue laser for a scientific application.

Ideally about 495nm [EDIT:488nm would be fine], either a laser diode on it's own or ideally in a small laser pointer device.

Any ideas?

Cheers,
Steve
Click to expand...
 
I think the chances of replicating rhd's results are quite slim on the 495nm diode. It was a 462nm that he pushed to that wavelength.
 
CNI Laser offers a wavelength at 491nm.
Crystal laser offers a wavelength at 490nm.
 
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swamidog said:
488 is the primary color for argon lasers. you can often pick up low powered air cooled systems off ebay for 100$ or so.
Click to expand...

"either a laser diode on it's own or ideally in a small laser pointer device."

Sounds like that'll be too big and power hungry for OP. :beer:

steve001 said:
CNI Laser offers a wavelength at 491nm.
Crystal laser offers a wavelength at 490nm.
Click to expand...

We don't even know what this guys budget is yet... Or what his project is. Or anything other than he wants a small pointing device emitting at around ~490nm.

Let's wait for OP to get back to us, eh? More information needed.
 
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Best bet is a custom built 488nm diode module. Didn't people source the 488's for $1500 or something a pop? Add in cost of other parts, and then you'd just need to have (or somehow find someone with) the balls to make one in a small build.

495nm is either a freak diode among freak diodes, or an engineering sample ($$,$$$)

I'd love to see it happen though. I want a 488nm pointer myself, but I will not pay the current going rate. I'm waiting to see the price drop even more. When I started out, they were going for 6k, then for 4k, now 1.5k... it is dropping...
 
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diachi said:
"either a laser diode on it's own or ideally in a small laser pointer device."

Sounds like that'll be too big and power hungry for OP. :beer:



We don't even know what this guys budget is yet... Or what his project is. Or anything other than he wants a small pointing device emitting at around ~490nm.

Let's wait for OP to get back to us, eh? More information needed.
Click to expand...
I don't wanna wait. You didn't tell Hap to wait. I want satisfaction now.
 
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Blimey! Some excellent replies thanks guys.

I am looking to excite some fluorophores for a microscope but have limited budget (tens of quid/dollars rather than hundreds). The good thing is that there are dozens of chemicals available so I can pick and choose my frequencies.

There is one stain I would like to try, which has a peak excitation at 495nm. However, if really pushed I could try some clever optics to focus LED (non-laser) as there are turquoise devices close to that range.

Thanks for the replies, give it a few years and maybe there will be a full spectrum of pointers for a few quid on eBay!

Cheers,
Steve
 
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