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Transient absorption and its influence on energy extraction in a discharge-pumped F2 laser (1994)

Kakehata, M. ; Ueno, Y. ; Tamura, K. ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 75 (1994), S. 1304-1310

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: Small-signal transient absorption of a discharge-pumped F2 laser (157.6 nm) medium was measured by using a Raman-shifted F2 laser (168.6 nm). The small-signal total absorption was obtained for 6 atm laser media at an excitation rate of ∼26 MW/cm3, where a small-signal net gain was independently measured to ∼35%/cm, as the sum of a transient absorption of ∼2.5%/cm and a stationary absorption of ∼0.5%/cm. In spite of the relatively large gain-to-loss ratio a significantly low maximum laser intensity of ∼2 MW/cm2, which gives zero extraction efficiency in the F2 laser medium, measured in heavily saturated F2 laser amplification experiments, suggests that the energy extraction is limited by additional absorption.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.356408

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