Hi, me and 2 friends got inspired by your video and wants to build a similar optical tweezer! We just wonder if its anyway to make it with a less expensive laser? (a green one) we're aware though that the aixiz lens only works with red light? Also, is it color from the sharpie that you trap or is it plastic from the cork? Grateful for any answer!
Now I need to replicate it. It's very difficult to make out what is happening on a YouTube video. What type of marker? What is the output and wavelength of the laser? I've had a couple of universities purchase 785nm lasers for optical trapping of phytoplankton. Poor little critters are so light they get pushed around by photons.
It is a 100mW 650nM "pulsar" series laser from WL. I used an old almost dry sharpie, and an aixiz acrylic lens. I used it because of it's short FL, which makes the spot a lot smaller than with a normal glass lens.
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Hoehne189 3 months ago
so basicly it is a laser focused on one point with a lens, is that correct?
And that glowing dot above is just the point where all the light is focused and you practicly see the air(and/or dust/smoke) glowing?
Jorickhoofd 1 year ago
WDF?!
ZZAKON 2 years ago
Hi, me and 2 friends got inspired by your video and wants to build a similar optical tweezer! We just wonder if its anyway to make it with a less expensive laser? (a green one) we're aware though that the aixiz lens only works with red light? Also, is it color from the sharpie that you trap or is it plastic from the cork? Grateful for any answer!
ulfbro 2 years ago
All you really need is a somewhat powerful laser >50mW and a lens with an extremely short focal length.
arcticmatts 2 years ago
Now I need to replicate it. It's very difficult to make out what is happening on a YouTube video. What type of marker? What is the output and wavelength of the laser? I've had a couple of universities purchase 785nm lasers for optical trapping of phytoplankton. Poor little critters are so light they get pushed around by photons.
frothychimp 3 years ago
It is a 100mW 650nM "pulsar" series laser from WL. I used an old almost dry sharpie, and an aixiz acrylic lens. I used it because of it's short FL, which makes the spot a lot smaller than with a normal glass lens.
arcticmatts 3 years ago
so i did it, and it was preety kewl. I did it with a 250mW open can DIY in a Kryton v1, and it was cool to see.
Then before my very eyes my 250mW beast turned to an LED all of a sudden ]-;
sigh... was cool while it lasted
amkdeath 3 years ago
Awesome!
But it sucks that your laser died.
arcticmatts 3 years ago
you didn't use current limitting on it :)
DarkTemp0 2 years ago
Haha, are you kidding me? Of course I used current limiting... There is no way to install a diode into a Kryton WITHOUT a proper driver.
BTW, If you ever need any help with lasers just look me up on laserpointerforums(com) my forum name is "amkdeath"
amkdeath 2 years ago
sorry, I didn't know you knew lasers well, it's just many people think "well the hell with limitting, it gives light it works"
Happy to know you're not the kind
I usually know my way arround lasers but i will surely check out your forum
Have a nice day and happy lasing :)
DarkTemp0 2 years ago
yea this is amazing... I should try this sometime...
amkdeath 3 years ago
What is that - smoke? Pretty wild how it just stays there....
Schrecken13 3 years ago
thats sweet! i might try it tomorrow! i have a snow day today and tomorrow! :)
TravisLikesCoolStuff 3 years ago
cool!
arcticmatts 3 years ago