Characteristics of a wire preionized nitrogen laser with helium as buffer gas

@article{BritoCruz1984CharacteristicsOA,
  title={Characteristics of a wire preionized nitrogen laser with helium as buffer gas},
  author={Carlos H. Brito Cruz and V. Loureiro and A. Dias Jr. Tavares and Artemio Scalabrin},
  journal={Applied Physics B},
  year={1984},
  volume={35},
  pages={131-133}
}
The operation of a small N2 laser using wire preionization and He as a buffer gas is discussed. The preionization is found to increase the output power and energy by 50% while the addition of helium can increase fourfold the output power. 

A high power N2 laser using water filled strip lines

A fast Blümlein circuit with a water strip line having an impedance of Z=0.078 Ω is used to excite a TE high power nitrogen laser at λ=337 nm. A pseudospark switch works as a high power switch. The

Corona‐preionized nitrogen laser with variable pulse width

A simple method of producing pulsed coherent radiation at 337.1 nm with variable pulse durations of 2.0–3.5 ns using a small transversely excited N2 laser is described. For laser operation in a

GAS AND VAPOR LASERS: Nitrogen laser utilizing a discharge creeping on the surface of an insulator

A study was made of a nitrogen ultraviolet laser excited by a discharge creeping on the surface of an insulator. It was found that the output radiation from such a laser was characterized by a low

Alpha particle bias ionization in a pulsed nitrogen laser

This work reports the role of alpha particles generated by Americium (241Am) stripes placed inside the discharge channel in providing a bias ionized background plasma before, during, and after the

Preionization effects of iso-C4H10 in N2 TE UV lasers

In this paper the ionizing role of isobutane (iso-C4H10) in the operation of a N2TE UV laser is analyzed. Laser pulse width value modifications, different laser wavelengths generated in the 2+ system

Behavioral studies of gain and saturation energy density in a N2 laser with corona preionization

By the use of an oscillator-amplifier (OSC-AMP) TE N2 laser system, both operating with corona preionizers, the laser parameters (small-signal gain g0 and saturation energy density Es) have been

Remote lasing in air by recombination and electron impact excitation of molecular nitrogen

We analyze and simulate the physical mechanisms for a remote atmospheric lasing configuration which utilizes a combination of an ultrashort pulse laser to form a plasma filament of seed electrons,

Additives as ionizing elements in N2 TE UV lasers

This work reports the role some additives have in pre-ionizing a N2 TE UV laser (337.1 nm). The modifications in both stimulated radiation characteristics and excitation-pulse period prove the

Experimental and theoretical analysis of bias ionization by α-particles in a nitrogen laser

Nitrogen laser performance with TE configuration and wedge electrodes is analyzed with background ionization in the laser discharge channel by α particles at a low exposition rate. With the bias

References

SHOWING 1-10 OF 12 REFERENCES

Improved excitation techniques for atmospheric pressure CO2 lasers

A simple and rugged electrode structure is described for the production of uniform pulse-excited discharges throughout large volumes at atmospheric pressure. Output energy densities of 18 mJ/cm3 have

High‐power nitrogen laser

The design and performance of a discharge excited N2 laser which can produce pulses of 337‐nm radiation with peak powers in excess of 5 MW and durations of 4 ns [full width at half‐maximum (FWHM)]

Picosecond uv laser pulses from gas discharges in pure nitrogen at pressures up to 6 atm

Single picosecond laser pulses in the second positive band of nitrogen are observed from high‐pressure gas discharges with traveling‐wave excitation. The gas discharge is operated in pure nitrogen

The effect of gas mixture on the electron kinetics in the electrical CO2 gas laser

Detailed numerical calculations of electron transport coefficients and vibrational excitation rates in a He:N2:CO2 gas laser discharge have been carried out over a range 1×10−16≤E/N≤5×10−16 V cm2 for

Electron transport parameters and excitation rates in N2

Using recently measured vibrational and electronic electron impact cross sections, a self‐consistent set of cross sections was obtained by numerically solving the Boltzmann transport equation and

Predicted electron transport coefficients and operating characteristics of CO2–N2–He laser mixtures

Calculations have been made of transport coefficients of electrons in gas mixtures for ratios CO2:N2:He of 1:1:8, 1:2:3, 1:7:30, and 1:0.25:3. New cross sections for CO2 derived from swarm

A simple high-power large-efficiency N 2 ultraviolet laser

The conditions for population inversion between the C^{3}\Pi_{u} and B^{3}\Pi_{g} levels ( \lambda = 3371 A) of N 2 such as the excitation time and the optimum value of E/p are calculated. To meet