Lin, J Y, Tallents, G J, Demir, A, Healy, S B and Pert, G J (1998) Optimization of double drive pulse pumping in Ne-like Ge x-ray lasers. Journal of Applied Physics. pp. 1863-1868. ISSN 0021-8979Full text available as:
Pumping of the Ne-like Ge x-ray laser with two 100 ps duration pulses (a prepulse and main pulse) is investigated using a fluid and atomic physics code coupled to a 3D ray tracing postprocessor code. The modeling predicts the optimum ratio of the irradiance of the two pulses for the maximum x-ray laser output resulting from the balance between the relative lower electron density gradients and wider gain region which is produced with a larger prepulse and the higher peak gain coefficients produced with a small prepulse. With a longer pulse interval between prepulse and main pulse, a relatively lower optimum pulse ratio is found. The threshold irradiance of the main driving pulse with a prepulse required to make an order of magnitude enhancement of laser output compared to irradiation without a prepulse is also found at 3-4x10(13) W/cm(2) for Ne-like Ge. (C) 1998 American Institute of Physics.
|Copyright, Publisher and Additional Information:||© 1998 American Institute of Physics. Reproduced in accordance with the publisher's self-archiving policy.|
|Keywords:||COLLISIONALLY-PUMPED LASER, XUV LASER, 19.6 NM, PREPULSES, BEHAVIOR|
|Academic Units:||The University of York > Physics (York)|
|Depositing User:||Repository Assistant|
|Date Deposited:||20 Nov 2006|
|Last Modified:||17 Oct 2013 14:41|