I especially liked your explanation of why it makes little sense to build a TEA laser with channel longer than 9.5" - as well as the variation that does not necessarily require an inductor.
I get better performance with resistors. However, you need a string of resistors - Sparks will jump around a single resistor. I've never investigated the actual value of resistance. It doesn't take much - it's always easier for electric current to jump the electrode gap, than to travel through anything else. Even a length of wire, or a single turn would probably work. I guess this is because the pulse is so incredibly brief, and once the channel becomes conductive the resistance is negative resistance.
@@magx1 wow indeed, i wish you had shown thát experimenting. No one that watched your video can know that you actually tried such interesting things out yourself. And thát is what we most wánt to see so learn from you, more than only the things you and i can read. At least i would enjoy watching wíth learning from the experimenters insights and gathered knowledge
Rob Son Thanks! There's a lot to share but I'm going to have to crank it out slowly. I've learned a lot of things over time - much of it has come from brilliant people like Jon Singer and Milan Karakas, and some of has been gained empirically. Lasers like this offer one a huge range of design variation and experimentation, due to their scratch-based origin. Likewise for CO2, but CO2 lasers are much more involved (not the kind of thing you build so quickly and easily).
I made one as a 16 year old, many, many years ago that is. Worked perfectly and had an output of estimated 7 mW with an extremely bright light blue dot on a piece of paper pulsed at around 8 Hz.
You probably dont give a damn but does anybody know of a trick to log back into an instagram account?? I was stupid lost my login password. I would appreciate any tips you can offer me!
@Amir Michael thanks so much for your reply. I got to the site on google and Im trying it out now. Seems to take quite some time so I will reply here later when my account password hopefully is recovered.
7mW is wierd for this type... are you talking about overall or individual pulses? bc individual pulses should be in the 100kW(+) range with these things as the pulse duration is only about a nanosecond...
Unfortunately it is not possible to make it run continuously. The number of pulses per second can be increased however. By increasing the number of pulses per second, the average power will be increased and the effects of the output will appear to be continuous.
@@magx1 what makes it impossible to do if He gas laser can work in continuous way then why not Nitrogen gas laser what if we make it partial vacuum with low Nitrogen pressure ?
Unfortunately the lower laser level has a longer life than the upper laser level, therefore continuous mode operation is impossible. I recommend the following webpages if you care to learn more. technology.niagarac.on.ca/people/mcsele/lasers/LasersN2.htm technology.niagarac.on.ca/people/mcsele/lasers/LasersTEA.htm
There's 2 steps of energy level dropping, the middle one is opeque . To pulse more often you circulate the N2 in a high velocity low pressure laminar flow , at about ⅛ to ⅙ atmospheric pressure, then you can fire it as fast as you can exchange the gas (speed of sound is a hard limit you can't get to, even with a lot of power pumping and cooling capacity, as got to have some pressure) , then if you chain a bunch of these together , millions of them(but less than 10 billion), all timed to fire after the pulse from the previous laser has mostly passed through, you might have something continuous.. It's limits are of practicality, money, space ... How clean your gas is... You would likely have to build in space to get millions or billions in a perfectly straight line , within a millimeter over a half a million miles.. they would likely only line up right a few times a century as they orbit the sun....(less if the orbit is outside of Earth's orbit) It would make a hellofa gravity wave detector 😜 Just get yourself a fluorine gas chemical laser....
Probably around 102 microns. However, thicker dielectrics can be used depending upon the voltage (spark gap spacing) with a possible tradeoff in efficiency. 250 microns should not be a problem. Thicker material, as alluded to above, requires a wider spark gap spacing, but only up to a point before the thickness of the dielectric results in inductance that is too great for the laser to work. A wider spark gap spacing requires higher voltage across the capacitors. It's a balancing act - if the voltage is too high, it will burn a hole through the dielectric. If the voltage is too low, you get no laser. If the electrode spacing is too narrow or wide for a given voltage, you get no laser. If the dielectric is too thick, then no amount of voltage will ever result in a working laser!
Lots of alooominumm, and very little soooorrrrrdddering to achieve fffreshold ! 😂🤣😃 ! I'm making one tomorrow, parallel laser cavity and pressurised spark gap and green lime jelly will emit the finest laser beam ever known !!! Muh Hah Hah !!!
@@magx1 what would be if that was your goal? Recommendations? Can you get a higher frequency by heterodyning two lasers together using the air itself as a nonlinear material?
First guy to put this into a cnc machine wins the maker of the year award.
I especially liked your explanation of why it makes little sense to build a TEA laser with channel longer than 9.5" - as well as the variation that does not necessarily require an inductor.
I get better performance with resistors. However, you need a string of resistors - Sparks will jump around a single resistor.
I've never investigated the actual value of resistance. It doesn't take much - it's always easier for electric current to jump the electrode gap, than to travel through anything else. Even a length of wire, or a single turn would probably work. I guess this is because the pulse is so incredibly brief, and once the channel becomes conductive the resistance is negative resistance.
@@magx1 wow indeed, i wish you had shown thát experimenting. No one that watched your video can know that you actually tried such interesting things out yourself. And thát is what we most wánt to see so learn from you, more than only the things you and i can read. At least i would enjoy watching wíth learning from the experimenters insights and gathered knowledge
Rob Son Thanks! There's a lot to share but I'm going to have to crank it out slowly. I've learned a lot of things over time - much of it has come from brilliant people like Jon Singer and Milan Karakas, and some of has been gained empirically. Lasers like this offer one a huge range of design variation and experimentation, due to their scratch-based origin. Likewise for CO2, but CO2 lasers are much more involved (not the kind of thing you build so quickly and easily).
I made one as a 16 year old, many, many years ago that is. Worked perfectly and had an output of estimated 7 mW with an extremely bright light blue dot on a piece of paper pulsed at around 8 Hz.
You probably dont give a damn but does anybody know of a trick to log back into an instagram account??
I was stupid lost my login password. I would appreciate any tips you can offer me!
@Cesar Michael Instablaster :)
@Amir Michael thanks so much for your reply. I got to the site on google and Im trying it out now.
Seems to take quite some time so I will reply here later when my account password hopefully is recovered.
@Amir Michael It did the trick and I now got access to my account again. I am so happy!
Thank you so much you saved my ass!
7mW is wierd for this type... are you talking about overall or individual pulses? bc individual pulses should be in the 100kW(+) range with these things as the pulse duration is only about a nanosecond...
How to make its beam continuous ?
Unfortunately it is not possible to make it run continuously. The number of pulses per second can be increased however. By increasing the number of pulses per second, the average power will be increased and the effects of the output will appear to be continuous.
@@magx1 what makes it impossible to do if He gas laser can work in continuous way then why not Nitrogen gas laser what if we make it partial vacuum with low Nitrogen pressure ?
Unfortunately the lower laser level has a longer life than the upper laser level, therefore continuous mode operation is impossible.
I recommend the following webpages if you care to learn more.
technology.niagarac.on.ca/people/mcsele/lasers/LasersN2.htm
technology.niagarac.on.ca/people/mcsele/lasers/LasersTEA.htm
@@magx1 you mean lower energy level ?
There's 2 steps of energy level dropping, the middle one is opeque .
To pulse more often you circulate the N2 in a high velocity low pressure laminar flow , at about ⅛ to ⅙ atmospheric pressure, then you can fire it as fast as you can exchange the gas (speed of sound is a hard limit you can't get to, even with a lot of power pumping and cooling capacity, as got to have some pressure) , then if you chain a bunch of these together , millions of them(but less than 10 billion), all timed to fire after the pulse from the previous laser has mostly passed through, you might have something continuous..
It's limits are of practicality, money, space ... How clean your gas is...
You would likely have to build in space to get millions or billions in a perfectly straight line , within a millimeter over a half a million miles.. they would likely only line up right a few times a century as they orbit the sun....(less if the orbit is outside of Earth's orbit)
It would make a hellofa gravity wave detector 😜
Just get yourself a fluorine gas chemical laser....
wonderful work
Thanks
what is the thickness of your dielectric in microns? 125 microns is good to work?
Probably around 102 microns. However, thicker dielectrics can be used depending upon the voltage (spark gap spacing) with a possible tradeoff in efficiency. 250 microns should not be a problem.
Thicker material, as alluded to above, requires a wider spark gap spacing, but only up to a point before the thickness of the dielectric results in inductance that is too great for the laser to work.
A wider spark gap spacing requires higher voltage across the capacitors. It's a balancing act - if the voltage is too high, it will burn a hole through the dielectric. If the voltage is too low, you get no laser. If the electrode spacing is too narrow or wide for a given voltage, you get no laser. If the dielectric is too thick, then no amount of voltage will ever result in a working laser!
Lots of alooominumm, and very little soooorrrrrdddering to achieve fffreshold ! 😂🤣😃 ! I'm making one tomorrow, parallel laser cavity and pressurised spark gap and green lime jelly will emit the finest laser beam ever known !!! Muh Hah Hah !!!
Can this Laser ionize air?
No. It's not a short enough wavelength to be ionizing radiation and it's not a high enough peak power to cause air breakdown.
@@magx1 what would be if that was your goal?
Recommendations?
Can you get a higher frequency by heterodyning two lasers together using the air itself as a nonlinear material?
I wish you had shown us some of that working and some experimenting with the idea of built
Thanks. I plan to. It's just easier for me and my viewers, if I break things down into separate videos.