Modal study of refractive effects on x-ray laser coherence

Conference · Fri Apr 05 04:00:00 EST 1991

OSTI ID:5843363

Amendt, P; London, R A ^[1]; Strauss, M ^[2]

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1. Lawrence Livermore National Lab., CA (USA)
2. Israel Atomic Energy Commission, Beersheba (Israel). Nuclear Research Center-Negev

The role of smoothly varying transverse gain and refraction profiles on x-ray laser intensity and coherence is analyzed by modally expanding the electric field within the paraxial approximation. Comparison with a square transverse profile reveals that smooth-edged profiles lead to: (1) a greatly reduced number of guided modes, (2) the continued cancellation of local intensity from a loosely guided mode by resonant free modes, (3) and the absence of extraneous (or anomalous) free mode resonances. These generic spectral properties should enable a considerable simplification in analyzing and optimizing the coherence properties of laboratory soft x-ray lasers. 6 refs., 3 figs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5843363
• Report Number(s): UCRL-JC-105736; CONF-9104164--3; ON: DE91012083
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
657002 -- Theoretical & Mathematical Physics-- Classical & Quantum Mechanics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COHERENT RADIATION
EIGENSTATES
ELECTRIC FIELDS
ELECTROMAGNETIC RADIATION
HOLOGRAPHY
LASERS
MATHEMATICAL MODELS
NOISE
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
REFRACTION
REFRACTIVITY
X-RAY LASERS