The output of amplified spontaneous emission lasers
摘要:
The output of amplified spontaneous emission (ASE) lasers such as X-ray lasers operated without mirrors is calculated exactly for Gaussian and Lorentzian small signal gain profiles by a simple Taylor series expansion. The accuracy of the 'Linford' formula commonly used as an approximation for the output of ASE lasers is evaluated by comparison to our exact solutions. The Linford formula is accurate to better than 10% for intensities produced by a Gaussian gain profile, but requires multiplication by a correction factor of at gain length product greater than 5 for Lorentzian gain profiles. (c) 2006 Elsevier Ltd. All rights reserved.
One-Carbon Homologation of <i>N</i>-Sulfonylaziridines to Allylic Amines Using Dimethylsulfonium Methylide
作者:David M. Hodgson、Matthew J. Fleming、Steven J. Stanway
DOI:10.1021/ol051124p
日期:2005.7.1
[reaction: see text]. Regio- and stereodefined allylic N-sulfonylamines are synthesized in high yields and under experimentally straightforward conditions by reaction of N-sulfonylaziridines with excess dimethylsulfoniummethylide.
The output of amplified spontaneous emission lasers
作者:H. Huang、G.J. Tallents
DOI:10.1016/j.jqsrt.2006.02.064
日期:2006.12
The output of amplified spontaneous emission (ASE) lasers such as X-ray lasers operated without mirrors is calculated exactly for Gaussian and Lorentzian small signal gain profiles by a simple Taylor series expansion. The accuracy of the 'Linford' formula commonly used as an approximation for the output of ASE lasers is evaluated by comparison to our exact solutions. The Linford formula is accurate to better than 10% for intensities produced by a Gaussian gain profile, but requires multiplication by a correction factor of at gain length product greater than 5 for Lorentzian gain profiles. (c) 2006 Elsevier Ltd. All rights reserved.