Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Science & Lasers



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 03-31-2015, 02:51 AM #1
Junior Member
 
Join Date: Mar 2015
Posts: 11
Rep Power: 0
aelshafiey is on a distinguished road
aelshafiey aelshafiey is offline
Junior Member
 
Join Date: Mar 2015
Posts: 11
Rep Power: 0
aelshafiey is on a distinguished road
Default Question about a laser that can Ionize air.

Hello,

I'm trying to find any laser that can Ionize air/pressurized air. (something cheap)
So I saw some lasers that have 10 W (laser pointers) that are for 100$, They have a short wavelength 400 nm (and they are continuous ofc) I'm not sure if these can Ionize air or not, any ideas?

Also please if you have any suggestions please let me know.

Thanks.


aelshafiey is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 03-31-2015, 02:58 AM #2
Sigurthr's Avatar
Class 3B Laser
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Sigurthr Sigurthr is offline
Class 3B Laser
Sigurthr's Avatar
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Default Re: Question about a laser that can Ionize air.

Still miles and miles away from ionizing air. You won't find a non-surplus system capable of air ionization short of tens of thousands of dollars. A SSY-1 NdYAG pulsed IR laser can do it in short bursts when paired with the correct lens.
__________________
Amateur Multispectral Photographer - [X-Ray, UV, Vis, IR]
Amateur Electrical Engineer
Autodidact
Tesla Coil Expert
Sigurthr is offline   Reply With Quote
Old 03-31-2015, 03:28 AM #3
Junior Member
 
Join Date: Mar 2015
Posts: 11
Rep Power: 0
aelshafiey is on a distinguished road
aelshafiey aelshafiey is offline
Junior Member
 
Join Date: Mar 2015
Posts: 11
Rep Power: 0
aelshafiey is on a distinguished road
Default Re: Question about a laser that can Ionize air.

And the SSY-1 NDYAG is homemade correct (I just looked it up)
Also whats so special about it? (like whats its wavelength, Energy)

Thanks, I appreciate you help.
aelshafiey is offline   Reply With Quote
Old 03-31-2015, 03:29 AM #4
Junior Member
 
Join Date: Mar 2015
Posts: 11
Rep Power: 0
aelshafiey is on a distinguished road
aelshafiey aelshafiey is offline
Junior Member
 
Join Date: Mar 2015
Posts: 11
Rep Power: 0
aelshafiey is on a distinguished road
Default Re: Question about a laser that can Ionize air.

Also what If I have 1500$, you dont think I will be able to find a laser that can Ionize air?
aelshafiey is offline   Reply With Quote
Old 03-31-2015, 04:03 AM #5
Sigurthr's Avatar
Class 3B Laser
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Sigurthr Sigurthr is offline
Class 3B Laser
Sigurthr's Avatar
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Default Re: Question about a laser that can Ionize air.

Even with $1500 you'd still be looking at a Q-Switched NdYAG as your only option.

The SSY1 is a laser rangefinder that operates at 1064nm which was used in israeli military tanks. It had a passive Q switch, and only required the addition of a proper power supply (xenon flash lamp power supply), ignitor, and PFN (pulse formation network). They're exceptionally hard to find available since about 2012, and the newer versions (dubbed SSY2 here, but not officially) run at much less power. Even the SSY2 are hard to source.

There are only a couple of lasers which can ionize air that are not custom solutions:
1) SSY1
2) Q-Switched NdYAG (in all flavors of frequency multiplication)
3) Q-Switched CO2
4) Very High Power Ruby


Edit: to answer what's so special about SSY1; it was the cheapest and most common Q-switched NdYAG hobbyists could hope to own.


Lots of others can do it, but they're all custom solutions designed for air breakdown.
__________________
Amateur Multispectral Photographer - [X-Ray, UV, Vis, IR]
Amateur Electrical Engineer
Autodidact
Tesla Coil Expert

Last edited by Sigurthr; 03-31-2015 at 04:04 AM.
Sigurthr is offline   Reply With Quote
Old 03-31-2015, 04:12 AM #6
Junior Member
 
Join Date: Mar 2015
Posts: 11
Rep Power: 0
aelshafiey is on a distinguished road
aelshafiey aelshafiey is offline
Junior Member
 
Join Date: Mar 2015
Posts: 11
Rep Power: 0
aelshafiey is on a distinguished road
Default Re: Question about a laser that can Ionize air.

I have the following 2 Q-Switched ND:YAG lasers, do you think they will work? (I dont think so because they have low energy)



aelshafiey is offline   Reply With Quote
Old 03-31-2015, 06:03 AM #7
Sigurthr's Avatar
Class 3B Laser
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Sigurthr Sigurthr is offline
Class 3B Laser
Sigurthr's Avatar
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Default Re: Question about a laser that can Ionize air.

I cannot say for sure, because it really depends on energy density, and it could be possible if you had a (nearly) diffraction-limited focusing lens (extremely short FL). Those pulse energies do look quite low though.

There's an old declassified military document that shows the energy per pulse per volume of area of air per wavelength needed to cause breakdown, but I can't seem to find it anymore. It is the prime source of info on CO2 laser based air ionization though, if you wish to dredge the internet looking for it that would be the primary search query.

Wish I could provide more info but flashlamp lasers isn't my forte aside from basics and 1960s era info.
__________________
Amateur Multispectral Photographer - [X-Ray, UV, Vis, IR]
Amateur Electrical Engineer
Autodidact
Tesla Coil Expert
Sigurthr is offline   Reply With Quote
Old 03-31-2015, 02:33 PM #8
Class 3R Laser
 
Join Date: Apr 2014
Location: NJ
Posts: 1,296
Rep Power: 174
Teej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond repute
Teej Teej is offline
Class 3R Laser
 
Join Date: Apr 2014
Location: NJ
Posts: 1,296
Rep Power: 174
Teej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond reputeTeej has a reputation beyond repute
Talking Re: Question about a laser that can Ionize air.

I did find this:

Eosc=9.310-6 I λ2
where I is the laser intensity (in watts per square meter), λ is the wavelength of the laser light (in meters), and the quiver energy is given in eV.

If the quiver energy is greater than the energy needed to remove an electron, cascade ionization occurs.

For air, the ionization energy is around 15 eV (15.6 eV for nitrogen molecules, 13.6 eV for oxygen molecules)..."

quoted from How to Build a Laser Death Ray: Ionization


(The link is dead though)


I also found this:

Air Breakdown
You've all seen it - a flash and bang in the middle of nowhere from an invisible high power laser. A large enough electric field will strip electrons right out of the molecules of air (mostly N2 and O2). The result is a plasma which appears like a tiny (or not so tiny) spark, possibly along with a loud sonic effect. While the peak power required to do this is high, it can come from relatively small lasers.

(From: James Whitby (james.whitby@phim.unibe.ch).)

The main thing that matters is the irradiance of the beam (i.e. power per area). One way of making an estimate is to consider when the electric field strength in the laser beam is comparable to that experienced by an electron in a a molecule of 'air', or to reported values for the dielectric breakdown of air using DC fields. The presence of any particulate matter will have a big effect on the threshold.

For practical numbers with pulsed lasers see for example: "A numerical investigation of the dependence of the threshold irradiance on the wavelength in laser-induced breakdown in N2", Gamal YEED, Shafik MSED, Daoud JM JOURNAL OF PHYSICS D-APPLIED PHYSICS 32 (4): 423-429 Feb. 21, 1999.

For quick numbers, from another very short paper: Tambay et. al., Pramana 37(2) pp163-166, 1991. Using approximately 2 ns pulses in clean dry air at atmospheric pressure, the thresholds for breakdown were found to be about:

Wavelength Power Density
------------------------------
1064 nm 6 x 1011 W/cm^2
532 nm 3 x 1011 W/cm^2
355 nm 2 x 1012 W/cm^2

(Note the minimum value for the second harmonic, although this looks like an outlier in the data-set this behavior is highlighted in the text so was presumably reproducible.)

(From: Phil Hobbs.)

Last edited by Teej; 03-31-2015 at 02:35 PM.
Teej is offline   Reply With Quote
Old 03-31-2015, 11:13 PM #9
Sigurthr's Avatar
Class 3B Laser
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Sigurthr Sigurthr is offline
Class 3B Laser
Sigurthr's Avatar
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Default Re: Question about a laser that can Ionize air.

I can reinforce the harmonic NdYAG efficiency; it was sited in that 1960s paper I talked about. For some reason 532nm is one of the most efficient at inducing breakdown. (I think ~180nm is the only one significantly more efficient and that's because O2 absorbs it VERY strongly and is the ionization wavelength of O2 to O3).

edit: typos
__________________
Amateur Multispectral Photographer - [X-Ray, UV, Vis, IR]
Amateur Electrical Engineer
Autodidact
Tesla Coil Expert

Last edited by Sigurthr; 03-31-2015 at 11:14 PM.
Sigurthr is offline   Reply With Quote
Old 04-15-2015, 04:20 PM #10
Class 2M Laser
 
Join Date: May 2009
Posts: 955
Rep Power: 1542
LSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond repute
LSRFAQ LSRFAQ is online now
Class 2M Laser
 
Join Date: May 2009
Posts: 955
Rep Power: 1542
LSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond repute
Default Re: Question about a laser that can Ionize air.

"And Lenin wrote a book on Marx,
And we sang Dirges in the dark,
Waiting for the spark to spark
The day the research died."

Apologies to Don Mclean..


My ophthalmic friends get air breakdown about every third shot at 7-10 mJ and less then 2 nanoseconds. It is part of their testing procedures for certain eye ND:YAG surgery lasers. They have a beam with controlled mode shape and very good focusing optics, which start with up-collimation and spatial filtering. I would not depend on such a small laser for a trigger. Air breakdown is used so the technician is not forced to carry an oscilloscope and very expensive photodiode. They are dependent on a piece of dust being near the focal point.

Having a small amount of particulate in the air greatly lowers the air breakdown threshold.

The lasers I used to service, used EO Q-Switches and a tiny Bullseye gradient on the middle of the output coupler to force a TEM00 mode buildup.

We easily obtained air breakdown at 125 mJ and 5 to 7 nanoseconds (1064 nm) with a tightly focused TEM:00 Beam. At 250-350 mJ, breakdown is almost certainly guaranteed with clean air at 1064 / 7 nS.. If you have a surface for the focused beam to interact with, the threshold is very low. I can attest to the fact that Green works better in general.

Generally a EO or Cr:YAG qswitch is used to get the shorter pulses with SHARP leading edges from lamp pumped ND:YAG.

So the usual scheme for a precise TEM:00 beam for a triggering system is thus:

1. The flashlamp(s) are continuously simmered at 100-200 mA DC to avoid the need for a trigger pulse. . Commercial simmering modules provide the starting pulse and simmer and are not expensive. These lasers are water cooled, so simmer heat is not a issue. Simmer in fact improves lamp life and increases pulse to pulse stability.

2. The storage capacitor is dumped into the simmering lamp using a IGBT or SCR and a blocking diode. A proper sized inductor in series with the capacitor shapes the current waveform for a critically damped, single cycle, pulse with no ringing.

3. After one upper state storage time, ie ~ 250 uSec for Nd:YAG, the Q-Switch is triggered by a precise triggering clock synced to the experiment.
So the first thing done by the experiment controller is dumping the charge into the lamp. The second thing it does is gate the driver for the EO Qswitch. AO Qswitches are generally not desirable for precision timing tasks nor for making a sharp edged optical pulse.

4. By edit/ redacted, never mind, probably should not have posted that. The upper state storage time also allows for some considerable slop in the external timing, as long as the laser is sized large enough.

5. A b-dot sensor halfway up the Marx chain is also often used to detect firing after the laser initiates the pulse.

So I'd start with a commercial Electro-Optically q-switched laser and focus it very close or onto the surface of the Marx electrode. Most of what is different from a standard industrial low rep rate, flashlamp pumped laser is the intracavity plate polarizer, the bulls-eye coating for mode control, and the EO Qswitch for precise timing.

Proper selection of the spot of sacrificial material for laser triggering is required.. Brass for low energies, Tungsten or certain copper alloy for the higher energies. Most users would work harder and obtain the air triggering so as to avoid having to replace sacrificial material.

Ekspla makes great EO cells and precision driver boards for this purpose. A 250-350 mJ Ekspla laser might just be idea.


10K would get you a flashlamp, used cavity, rod, optics, and the EO cell with driver. It would not get you a new power supply or a complete laser with the heat exchanger, DI based water cooling, safety features, warrenty etc. Four times that would be more typical for a new unit. Manufactures some times have a used or trade-in unit laying around that would go for less.

A Ebay rangefinding laser would get you the surface plasma breakdown, but you would NOT get precision timing from just firing a flashlamp with a passive Q-Switch. Its not likely to get you a consistent air breakdown with the typical long pulse, ringing lamp driver, and poor mode structure they emit.

Disclaimer, I used to work for the US Rep for Ekspla. My former competitor, Continuum, might also be of service.

The stats for the lasers you posted do not suggest power levels and pulse durations suitable for triggering a spark gap by direct air breakdown. You might get a surface breakdown, but those have lifetime issues, especially when your trigger material sputters all over the place and causes false triggers down the road.

I wish I could tell you more, but I'm limited by certain agreements.

Steve
__________________
Career highs and lows:

255 nm to 2100 nm Tunable.
2100 nm to 11 uM tunable.
50 Joules, 700 Picoseconds 1064
32 Joules, 700 pS Green.
Nanosecond, Picosecond, Femtosecond.
HeCad, HeNe, CuBr, Krypton, Argon, N2, Dye, Ti:Saph,
Nd:YLF, Nd: VANDATE, ND:GLASS, OPG, SFM, RAMAN SHIFTED, DFG, OPA,UV Argon Ion, UV and IR (752/799) Krypton Ion
2,3,4th Harmonics of Yag. 13 lines of Mixed Gas, 575 Kr. 690 Kr . 18 lines of HENE. NEW FOR 2016! "Blue OPSL" and Raman Shifted Hene 651 ... New for 2017, Green OPSL, Coming Soon, Yellow OPSL Yet I've flipped Burgers, too.

"I'm from Akron, I know what the Polymers Taste Like"

Last edited by LSRFAQ; 04-15-2015 at 04:50 PM.
LSRFAQ is online now   Reply With Quote
Old 04-16-2015, 12:10 AM #11
Sigurthr's Avatar
Class 3B Laser
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Sigurthr Sigurthr is offline
Class 3B Laser
Sigurthr's Avatar
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Default Re: Question about a laser that can Ionize air.

Thanks a ton, Steve! Really awesome in-depth info you've given.
__________________
Amateur Multispectral Photographer - [X-Ray, UV, Vis, IR]
Amateur Electrical Engineer
Autodidact
Tesla Coil Expert
Sigurthr is offline   Reply With Quote
Old 04-16-2015, 03:02 AM #12
Polonium210's Avatar
Class 2 Laser
 
Join Date: Nov 2011
Location: Edmonton, AB
Posts: 382
Rep Power: 97
Polonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond repute
Polonium210 Polonium210 is offline
Class 2 Laser
Polonium210's Avatar
 
Join Date: Nov 2011
Location: Edmonton, AB
Posts: 382
Rep Power: 97
Polonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond reputePolonium210 has a reputation beyond repute
Default Re: Question about a laser that can Ionize air.

Here is an air breakdown shot from my SSY1 laser.




-Rob
__________________

__________________________________________________
405nm 75mW Wicked Lasers E2 Evolution
405nm 500mW S06J build
405nm 750mW S06J build
445nm 1W Aurora C6 custom build
445nm 825mW UltraFire A1 custom build
445nm 800mW Arctic Spyder III
445nm >2W M-140 Saik custom build
447nm 1W Spartan
520nm 180mW 501B
532nm 15mW laser pointer
532nm 75mW TTL Lab module
532nm 125mW Wicked Lasers E2
532nm 150mW Rayfoss
532nm 300mW Wicked Lasers Krypton
632.8nm 1mW Laserex HeNe handheld
633nm 3mW HeNe Siemens
635nm 200mW o-Like
638nm 560mW Mitsubishi in Aurora SH-034 custom build
650nm 120mW Warnlaser pointer
660nm 250mW Small Sun A33
660nm 265mW Rayfoss
RGB 200mW Labby
1064nm Pulsed Nd:YAG Laser ~ 10-50mJ output
10600nm 40W Co2 laser
LaserBee A 2watt LPM

LASER PICS

TESLA COILS
__________________________________________________
Polonium210 is offline   Reply With Quote
Old 04-16-2015, 01:43 PM #13
Class 2M Laser
 
Join Date: May 2009
Posts: 955
Rep Power: 1542
LSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond repute
LSRFAQ LSRFAQ is online now
Class 2M Laser
 
Join Date: May 2009
Posts: 955
Rep Power: 1542
LSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond reputeLSRFAQ has a reputation beyond repute
Default Re: Question about a laser that can Ionize air.

[QUOTE=Polonium210;1356719]Here is an air breakdown shot from my SSY1 laser.

Rob, Amazingly beautiful beautiful image.

What what is implied in his post for a Marx generator triggered by a laser, is that he wants precision timing for less then 10 Grand. The SSY 1 has a timing drift measured in 10s of milliseconds, simply because of the trigger coil and passive Q-switch.. The OPs employer probably wants 10 microseconds.

Steve
__________________
Career highs and lows:

255 nm to 2100 nm Tunable.
2100 nm to 11 uM tunable.
50 Joules, 700 Picoseconds 1064
32 Joules, 700 pS Green.
Nanosecond, Picosecond, Femtosecond.
HeCad, HeNe, CuBr, Krypton, Argon, N2, Dye, Ti:Saph,
Nd:YLF, Nd: VANDATE, ND:GLASS, OPG, SFM, RAMAN SHIFTED, DFG, OPA,UV Argon Ion, UV and IR (752/799) Krypton Ion
2,3,4th Harmonics of Yag. 13 lines of Mixed Gas, 575 Kr. 690 Kr . 18 lines of HENE. NEW FOR 2016! "Blue OPSL" and Raman Shifted Hene 651 ... New for 2017, Green OPSL, Coming Soon, Yellow OPSL Yet I've flipped Burgers, too.

"I'm from Akron, I know what the Polymers Taste Like"

Last edited by LSRFAQ; 04-16-2015 at 01:44 PM.
LSRFAQ is online now   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 08:52 PM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC