Demonstration of X-ray amplifiers near the carbon K edge

The Ni-like 4{ital d}-4{ital p} laser scheme has been extended to wavelengths near the {ital K} absorption edge of carbon. A gain of 2.3 cm{sup {minus}1} with a duration of 250 psec was observed in Ni-like Ta at 44.83 A (a wavelength close to optimal for holographic imaging of live cells). Ni-like W...

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Veröffentlicht in:Physical review letters 1990-07, Vol.65 (4), p.420-423
Hauptverfasser: MACGOWAN, B. J, MAXON, S, DA SILVA, L. B, FIELDS, D. J, KEANE, C. J, MATTHEWS, D. L, OSTERHELD, A. L, SCOFIELD, J. H, SHIMKAVEG, G, STONE, G. F
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Sprache:eng
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Zusammenfassung:The Ni-like 4{ital d}-4{ital p} laser scheme has been extended to wavelengths near the {ital K} absorption edge of carbon. A gain of 2.3 cm{sup {minus}1} with a duration of 250 psec was observed in Ni-like Ta at 44.83 A (a wavelength close to optimal for holographic imaging of live cells). Ni-like W produced a gain of 2.6 cm{sup {minus}1} with a total of seven gainlengths of amplification at 43.18 A. This is the first demonstration of an x-ray amplifier on the short-wavelength side of the carbon {ital K} edge, within the water window.'' Both lasers should be scalable to coherent power sufficient for holographic imaging and other applications.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.65.420