Metal Hybrid Lasers

Little, C.E.; Jones, David R.H.; Fairlie, S. A.; Whyte, C.G.

doi:10.1007/978-94-009-1669-2_12

Cited by 21 publications

(31 citation statements)

References 25 publications

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“…Table I also shows the excited neutral and ionized species identified using data from references [11,12]. It can be seen from the Table that most of the lines belong to singly ionized atoms, with fewer lines belonging to neutral and doubly-ionized atoms.…”

Section: Resultsmentioning

confidence: 99%

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Optical emission spectra of a copper plasma produced by a metal vapour vacuum arc plasma source

Yotsombat

Davydov

Poolcharuansin

et al. 2001

J. Phys. D: Appl. Phys.

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Optical emission spectroscopy in the range from 200 to 800 nm was applied for investigation of the copper plasma produced by a metal vapor vacuum arc plasma source. The experiments were conducted for the cases when the plasma was guided by straight and Ω-shaped curved solenoids as well as without solenoids and, also, for different vacuum conditions. It was found that, besides singly and doubly charged ions, a relatively high concentration of excited neutral copper atoms was present in the plasma. The relative fraction of excited atoms was much higher in the region close to the cathode surface than in the plasma column inside the solenoid. The concentration of excited neutral, singly-and doubly-ionized atoms increased proportionally when the arc current was increased to 400 A. Some weak lines were attributed to more highly ionized copper species and impurities in the cathode material.

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Section: Resultsmentioning

confidence: 99%

“…These resonance lines with high transition probabilities (∼ 1 8 10 − s ) correspond to the energy levels 2 3 2P (3.82 eV) and 2 1 2P (3.786 eV) [11,12]. Also, in the visible range the intensity of the 510.6 nm (laser transition [12]) atomic line is much higher than that of the ion lines (for instance, 527nm…”

Section: Resultsmentioning

confidence: 99%

Optical emission spectra of a copper plasma produced by a metal vapour vacuum arc plasma source

Yotsombat

Davydov

Poolcharuansin

et al. 2001

J. Phys. D: Appl. Phys.

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“…Among the latter, metal vapor lasers (MVL) are well represented [3,4]. Currently, the most effective among MVLs are copper vapor lasers [4,7] and strontium vapor lasers [5,6], operating with pulse repetition rates from units of hertz up to hundreds of kilohertz. The work [1] describes an oscillator operating on vapors of CuBr, SrIi, and SRII, when two active elements (AE) are placed into a common resonator.…”

Section: Introductionmentioning

confidence: 99%

“…The master oscillator was composed of gas discharge tubes (1) with the active zone L = 800 mm, D = 26 mm, and a gas discharge tube (2) with the active zone L = 550 mm, D = 30 mm. They were located in the common resonator consisting of spherical mirrors: convex (3) and concave (4). The collimator was comprised of two concave spherical mirrors (5,6) coated with aluminum and placed into the common focus of spatial filter mirrors (7) with a hole diameter of 0.3 mm, which has allowed to allocate from the oscillator irradiation a spatial component with a spreading close to the diffraction limit.…”

Section: Introductionmentioning

confidence: 99%

Computer Control of the Spectral Composition of the Powerful Laser System Irradiation with a Wide Range of Laser Transitions on Metal Vapors

Soldatov

Doroshenko

Kostadinov³

et al. 2016

MATEC Web Conf.

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Abstract.The results of the experimental study cycle of the multiwave metal vapor laser system on the basis of the original configuration of the multimedia laser emitter. The spectral parameters of the setup have been controlled using a personal computer (PC). This allows carrying out their independent optimization according to excitation conditions, and, therefore, promptly allocating the output set of oscillating wavelengths and their relative distribution in power, which makes the system attractive for scientific and technological application.

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“…Because of this, a population inversion is formed on the transition from the resonance to the metastable level and a laser action can be obtained. Even though a great deal of effort has been made to study the physics of lasers on RM transitions, primarily of a copper-vapor laser, the practical efficiency of this class of lasers is a mere ~1% [2][3][4][5], and the average lasing power of domestic copper-vapor lasers is 40-50 W from one active element [5], which is an order of magnitude lower than the predicted power level.…”

Section: Introductionmentioning

confidence: 99%

The strontium-vapor laser pumping efficiency under running-wave excitation

et al. 2008

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UDC 621.373.535The effect of the design features of the gas-discharge tube on the processes proceeding in the discharge circuit of a metal-vapor laser has been investigated. The position of electrodes in the gas-discharge tube has been found to significantly affect the processes at work in the discharge circuit and the energy characteristics of the laser. For instance, gas-discharge tubes with electrodes placed in the hot region of the discharge channel are typified by high metastable-population rates at the leading edge of the excitation pulse, whereas with electrodes positioned in cold buffer regions, the leading edge of the voltage pulse across the resistive component of the tube impedance is seen to peak. Conditions for running-wave generation in the active media of lasers on self-terminated transitions of metal atoms and the running-wave use efficiency for laser pumping are discussed, considering a strontium-vapor laser as an illustration. It is shown that the running wave is generated as the result of the breakdown in the anode end of the gas-discharge tube and is maintained by the energy stored in the capacitive component of the impedance of the gas-discharge tube. The lasing pulse duration under running-wave excitation corresponds to the time it takes an ionization wave to propagate from the anode to the cathode of the gas-discharge tube, with pumping efficiency being ~6-8% for a strontium-vapor laser. The average lasing power varies within 10-15% depending on whether the totally reflecting cavity mirror is placed near the anode or the cathode of the tube.

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Metal Hybrid Lasers

Cited by 21 publications

References 25 publications

Optical emission spectra of a copper plasma produced by a metal vapour vacuum arc plasma source

Optical emission spectra of a copper plasma produced by a metal vapour vacuum arc plasma source

Computer Control of the Spectral Composition of the Powerful Laser System Irradiation with a Wide Range of Laser Transitions on Metal Vapors

The strontium-vapor laser pumping efficiency under running-wave excitation

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