Optically stimulated X-ray laser

Isaac Freund

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


X-ray emission from the 2s → 1s transition in hydrogenic ions stimulated by an optical laser is proposed as a means of achieving lasing action in the x-ray region. A net gain of 0.27 cm-1 is calculated for the 18.97-Å 2s → 1s transition of O+7 at an inverted population density of 1015 ions/cm3 in the presence of a Nd laser field of 5 × 108 W/cm2.

Original languageEnglish
Pages (from-to)13-15
Number of pages3
JournalApplied Physics Letters
Issue number1
StatePublished - 1974


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