Improved performance of XeF lasers in argon diluent

Kimura, W. D.; Salesky, E. T.; Seamans, J. F.
November 1986
Applied Physics Letters;11/17/1986, Vol. 49 Issue 20, p1319
Academic Journal
A comparison of laser performance in electron beam pumped XeF using either neon or argon diluent is presented. Extraction measurements are performed at room temperature under high-energy loading conditions (160 kW/cm3, 1 μs laser pulse lengths) using either NF3 or F2 as halogen fuels. It is found with neon diluent that the laser output remains relatively constant during the excitation pulse, but with argon diluent the output increases almost linearly during the pulse. This continuous rise of the laser output with argon diluent leads to efficiencies higher than with neon diluent for input energy loadings >=100 J/l. There are also indications that the argon diluent mixture is less susceptible to halogen burn-up.


Related Articles

  • High efficiency multikilojoule HF chemical lasers using an electron beam initiated low-pressure mixture of H2/F2/NF3 or H2/F2/SF6. Kannari, Fumihiko; Inagaki, Hirohito; Obara, Minoru // Applied Physics Letters;1/27/1986, Vol. 48 Issue 4, p266 

    High electrical and high chemical efficiencies were simultaneously achieved for the multikilojoule HF chemical laser using a Lambda-type (inclined type) electron beam initiation scheme. The optimum addition of NF3 or SF6 fluorine donor could increase both efficiencies and could reduce the total...

  • Characteristics of an electron beam pumped KrF laser amplifier with an atmospheric-pressure Kr-rich mixture in a strongly saturated region. Suda, Akira; Kumagai, Hiroshi; Obara, Minoru // Applied Physics Letters;7/27/1987, Vol. 51 Issue 4, p218 

    Amplifier characteristics of a KrF laser were investigated as a function of Kr concentration for a wide range of input intensity. The experiments were performed with atmospheric-pressure mixtures excited by a 65-ns (full width at half-maximum), 160-A/cm2 electron beam. The extracted intensity...

  • Spectral evolution in an electron beam pumped XeF laser. Harris, D. G.; Burde, D. H.; Malins, R. J.; Tillotson, J. H. // Applied Physics Letters;10/19/1987, Vol. 51 Issue 16, p1224 

    A spectral sweep in the 353-nm band of an electron beam pumped XeF laser has been investigated. The time-integrated lasing spectra broaden as the pulse length, electron beam pump rate, and intracavity flux are increased. Several possible explanations are discussed.

  • Efficiency of an electron-beam-pumped chemical laser with an SF[sub 6]–H[sub 2] working mixture. Orlovskiı, V. M.; Sosnin, É. A.; Tarasenko, V. F.; Ponomarenko, A. G.; Khapov, Yu. I. // Technical Physics;Jan99, Vol. 44 Issue 1, p69 

    Results are presented from a study of HF lasers pumped by non-chain chemical reactions initiated by a radially convergent and by a planar electron beam. The main channels of formation of vibrationally excited HF molecules are analyzed. The distribution of the energy density of the radiation in...

  • Lasing of ArF with a microsecond electron beam. Glessner, J. W.; McAuliffe, M. J.; Smith, B. D.; Floyd, K. B. // Journal of Applied Physics;11/1/1991, Vol. 70 Issue 9, p4694 

    Reports on the lasing of ArF(B-X) for long pulse lengths using a low excitation pump rate electron-beam. Description of the laser device; Results and discussion.

  • Laser action of nd[sup 8] (n+1)s[sup 2] -nd[sup 9] (n+1)p transitions in HgIII, CuII and AgII. Blagoev, K. B.; Popov, G.; Dimova, E. // Applied Physics B: Lasers & Optics;1996, Vol. 63 Issue 4, p349 

    A mechanism of the laser action of 5d[sup 8] 6s[sup 2] –5d[sup 9] 6p HgIII transitions is proposed. The explanation is based on atomic constants of the transitions and the predominant role of direct electron excitation of the upper laser level. The kinetic models of electron beam and...

  • Microgun-pumped semiconductor laser. Molva, E.; Accomo, R.; Labrunie, G.; Cibert, J.; Bodin, C.; Le Si Dang; Feuillet, G. // Applied Physics Letters;2/22/1993, Vol. 62 Issue 8, p796 

    Demonstrates the possibility of a microgun-pumped semiconductor laser. Characteristics of the laser; Components of the compact cold electron source; Capability to use wide array of quantum-well heterostructures; Potential to cover the infrared-ultraviolet wavelength range; Importance for direct...

  • Wavelength-agile operation of an injection-controlled XeF(C...A) laser system. Hofmann, Th.; Yamaguchi, S.; Dane, C.B.; Wilson, W.L.; Sauerbrey, R.; Tittel, F.K.; Rubino, R.A.; Nighan, W.L. // Applied Physics Letters;2/11/1991, Vol. 58 Issue 6, p565 

    Reports on the performance of a pulsed laser system consisting of an electron beam pumped excimer laser injection-controlled by a wavelength-agile dye laser. Random sequence tuning over a 27 nanometer spectral region; Laser output energies with pulse durations; Pulse energy and spectral profile...

  • Performance characteristics of the ArF excimer laser using a low-pressure argon-rich mixture. Suda, Akira; Obara, Minoru; Noguchi, Akira // Journal of Applied Physics;11/15/1986, Vol. 60 Issue 10, p3791 

    Examines the low-pressure operation of an electron (e)-beam excited argon fluorine (ArF) laser and krypton fluorine. Intrinsic efficiency of the ArF laser energy; Time histories of the e-beam current; Overview of the laser mixture and pulsewidth.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics