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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 52 (1991), S. 117-121 
    ISSN: 1432-0649
    Keywords: 42.60D
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A colliding pulse mode-locked ring dye laser, pumped by an all-line small frame Ar+ laser has been used to generate stable pulses as short as 49 fs with pulse duration and stability similar to those obtained with the usual configuration where a single line of the pump is used. The effects of cavity alignment on the absorber saturation are presented and explained in terms of an analysis of stability of the ring cavity.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0649
    Keywords: PACS: 52.80.Vp; 52.75.Pv
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: 6 shots, the X-ray dose, uniformity, and ionisation rate values guarantee an effective preionisation of excimer laser discharges. Owing to both the long lifetime and the substantial absence of maintenance, this X-ray diode seems suitable to preionise commercial gas lasers, such as excimer and TEA CO2 lasers.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 9 (1987), S. 873-891 
    ISSN: 0392-6737
    Keywords: Lasing processes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si presentano le caratteristiche costruttive e operative di un laser a XeCl preionizzato a raggi X e funzionante in regime di scarica autosostenuta. Si sono ottenuti impulsi laser con energie specifiche di 3.3 J/l e durata di 150 ns. L’uniformità spaziale del fascio laser di dimensioni (3.5×3.5) cm2 è risultata migliore del 90%. La massima efficienza intrinseca raggiunta senza l’uso di un circuito esterno di preimpulso è stata del 3.6%. L’introduzione del preimpulso ad alta tensione per intensificare la preionizzazione ha consentito di migliorare l’accoppiamento in energia depositata nel mezzo attivo e di ottenere un punto di lavoro piú stabile a tensione di pompaggio piú bassa.
    Abstract: Резюме Описываются конструкция и характеристики рентгеновского предионизационного XeCl лазера. Были получены лазерные импульсы с удельной энергией 3.3 Дж/литр и длительностью 150 нс. Пространственная однородность лазерного пучка с размерами (3.5×3.5) см2 была лучше 90%. Была получена внутренняя эффективность вплоть до 3.6% без использования внешнего предимпульсного тока. Успешно опробовано введение предимпульса высокого напряжения для интенсификации предионизации. Получено улучшение связи энергии в активной среде и более надежные условия работы лазера при меньшем напряжении.
    Notes: Summary The construction and the operating characteristics of a X-ray preionized discharge XeCl laser are described. A specific laser output energy of 3.3 J/l with a pulsewidth of 150 ns and a spatial beam uniformity better than 90% in a (3.5×3.5) cm2 cross-section was achieved. Intrinsic efficiency up to 3.6% has been obtained without the use of an external prepulse circuit. A fast, high-voltage prepulse to intensify the preionization has been successfully tried out, obtaining a better energy coupling to the gas and more reliable conditions at lower working voltage.
    Type of Medium: Electronic Resource
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