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Free Electron Lasers and Other Advanced Sources of Light Scientific Research Opportunities (1994) / Chapter Skim
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5 VACUUM ULTRAVIOLET AND EXTENDED ULTRAVIOLET REGION: 200 to 10 nm
Pages 36-40

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From page 36...
... at Lawrence Berkeley Laboratory, while peak powers of about 1 kW will be available at the Advanced Photon Source (APS) at Argonne National Laboratory.
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From page 37...
... The key technical challenge of a VUV FEL is the achievement of high electron-beam quality along with high peak current. An FEL oscillator with normal incidence mirrors may be possible down to about 100 nm using clean Al mirrors in ultrahigh vacuum (Kortright, 19909.
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From page 38...
... Photodissociation Dynamics Specific quantum-state analysis for chemical studies using pump-probe techniques has been made possible through the development of lasers. Applied to photochemistry, this technique uses an initial laser pulse to excite a molecule to a specific state; the molecule then dissociates, producing a set of fragments that a second laser probes to determine their internal state or velocity distribution.
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From page 39...
... Radicals are involved in some of the most important chemical processes, including in combustion and atmospheric chemistry. Studies of weakly bound complexes at the rovibronic level provide information not only about structure but also about chemical dynamics, including energy transfer and reaction processes.
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From page 40...
... FINDINGS 1. Modern third-generation synchrotrons will cover the vacuum ultraviolet and extended ultraviolet regions well and will provide opportunities to explore much new scientific research in this wavelength region.
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Key Terms

  • electron laser
  • vacuum ultraviolet
  • wavelength range
  • vuv free
  • peak power

  • electron lasers
  • extended ultraviolet
  • harmonic generation
  • pulse energies
  • bound complexes

  • peak powers
  • synchrotron sources
  • beam quality
  • generation sources
  • probe beam

  • weakly bound
  • user facility
  • ultraviolet free
  • laser facility
  • core levels

  • pump beam
  • sources exist
  • technical challenge
  • laser user
  • particularly radicals

  • photon energies
  • photoelectron analysis
  • ultraviolet regions
  • laser using
  • envisioned beyond


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