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  • PACS: 42.65.Ky; 41.50.+h; 42.50.Hz; 42.65.Re  (1)
  • calorimetry  (1)
  • Organic Chemistry
  • Springer  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Few-cycle-driven XUV laser harmonics: generation and focusing (2000)
    Springer
    Applied physics 70 (2000), S. S227 
    Details
    ISSN: 1432-0649
    Keywords: PACS: 42.65.Ky; 41.50.+h; 42.50.Hz; 42.65.Re
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. We have investigated the use of sub-10-fs near-infrared laser pulses to generate high-order harmonic radiation efficiently in the wavelength region between 30 to 10 nm. The ultrashort rise time of the driver pulses allows harmonics to be produced at low ionization levels and hence to grow coherently over propagation lengths becoming comparable to the XUV absorption lengths in the noble gas medium. As a result, absorption-limited harmonic generation has been extended to the 10-nm range for the first time. Harmonic conversion efficiencies of (3–4)×10−8 in the range of 10–13 nm in neon and some two orders of magnitude higher at around 30 nm in argon have been obtained in simple gas tube targets under these conditions. Preliminary focusing tests with 13-nm harmonic radiation have been carried out with a specially designed zoneplate and a spherical Mo/Si multilayer mirror and have resulted in spot sizes of about 2 microns. Our experiments aim at paving the way to nonlinear optics in the soft-X-ray regime.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003400000286
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  • 2
    Electronic Resource
    Electronic Resource
    Phase diagram of the system dihexadecylphosphatidylcholine/dihexadecyl-phosphatidic acid/water/NaOH at pH=14 (1990)
    Springer
    Colloid & polymer science 268 (1990), S. 196-201 
    Details
    ISSN: 1435-1536
    Keywords: Phasediagram ; phospholipids ; calorimetry ; freeze-fracture electronmicroscopy ; NMR ; 31Pdemixing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Differential-scanning-calorimetry, freeze-fracture electron microscopy, and31P-NMR spectroscopy were used to study the lyotropic and thermotropic properties of the system dihexadecylphosphatidylcholine/dihexadecylphosphatidic acid/water/ NaOH in dispersion with excess water at pH=14. The phase diagram showed that both phospholipids are demixed nearly completely in the gel phase. The coexistence of theP β′ and theB β-phase in the mixtures was pointed out in the freeze-fracture electron micrographs by the “ripple structure” (P β′-phase) and by the lamellar structure (B β-phase).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01513199
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