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Optical Trapping - Real Laser Tractor Beams

nospin

nospin

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Wow I got it to work!
The AW-210 at 263mw works better than the LOC 300mw
I'm guessing because a smoke is denser than with the red?
I had 6 particles trapped a few times! 1 & 2 is more common
Quality of the lens and a very short focal length are key to success
with my 405 Jayrob lens a 1" FL seems to work the best
and the black sharpie tip is the only thing that's worked so far

Jim
 

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Xplorer877

Xplorer877

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Success!
I can do it with my LOC 20x and a Aixiz Glass Lens. I'm using the felt tip of a black sharpie and it sure does work! I can get them to stay for about 1 second or so. Also I can adjust the focal length and the particle moves with it! This is sooo cool! LOL. I could never do it before with my many 16x builds but now I can do it no problem. I think I can get it to last longer with static air currents and a closer focal length. I'll try and get a video soon

-Tony
 
BShanahan14rulz

BShanahan14rulz

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Try it with your bluray, it may be easier...

My O-like "10mW" bluray pen traps particles easily, more easily than my red LOC at 350mA
 
Xplorer877

Xplorer877

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Yeah I can do it with my 405nm laser too. So far my record is about 5 seconds.

-Tony
 
Xplorer877

Xplorer877

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It's probably more than 10mW then. I have a 25mW 405nm pointer and it cant burn anything.

-Tony
 
ossumguywill

ossumguywill

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BShanahan14rulz said:
dern'd if I know. All I'm saying is that my particular BR pen, labeled and sold as a 10mW, pulls smoke from leather, starts pop-caps, and can trap sharpie particles. Lucky me, eh?
Click to expand...

LOL
That's really not safe though, some guy gets a "5mW" off ebay and burns someone's eyes out because he's not careful.
 
ReNNo

ReNNo

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In these days it's not safe to buy cheap 5mW laser pointer and be sure that it's safe.
All these pointers are overspec.
 
jbtm

jbtm

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I got this to work a few times on my bluray, 6X. i think its at 200mA...is there any trick to doing it better? I just poke a sharpie into it and here and there i luck out and get 3 dots that collide to 1.

Xplorer877 said:
Yeah I can do it with my 405nm laser too. So far my record is about 5 seconds.

-Tony
Click to expand...

I have a 6X bluray, my record is "It took too long" i didnt want to damage the laser due to heat.
YouTube - Bluray laser Optical Trapping

I move it around at 1:30 and 2:50
 
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L

LaserGuns

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Jul 26, 2009
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This is the coolest freaking thing ever! I just tried it with my blu-ray in a standard axiz housing with plastic lens. Most of the time it is like a short beam, maybe a mm long but sometimes I can get it into a point.

THIS IS SO COOL!:D
 
BShanahan14rulz

BShanahan14rulz

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Yeah, whatever happened to the good ol' days where a label actually meant something instead of being simple decoration?
 
Krutz

Krutz

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what the hell! if I wouldnt have seen the videos, I wouldnt believe you with this! :)
tried it with 500mW bluray, 300mW red, 100mW green. glasslens with f' of about one inch. smoked paper and a pentip. with doors closed as well as under a small-melon-sized glasssphere. almost no airmovemend in there. after a bit there is smoke in there, the whole beam is visible. I wear googles, but am able to see the smoke in the beam.

not a single time anything remotely like what you posted! *mad*

..static electricity fields, you say..? its raining outside.. maybe its that..

ah, I better re-measure the laserpowers..

manuel
 
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