Photoionization lasers pumped by broadband soft-x-ray flux from laser-produced plasmas
Large population inversions on transitions ranging in wavelength from 109 to 748 nm have been produced in six elements pumped by photoionization through inner-shell and/or multielectron (shakeup) processes with the broadband soft-x-ray flux from laser-produced plasmas. Gain coefficients ranging from 0.25 to 11.5-cm/sup -1/ have been measured in He, Ar, Zn, Cd, In, and Xe using the soft-x-ray flux produced by 25--300-mJ, 70-psec-, and 10-nsec-duration pulses from a 1.06-..mu..m laser. Extension of this scheme to Na suggests that a 10-mW average-power laser can be produced at 37.2 nm at a 10-Hz repetition rate by photoionizing Na vapor with the soft-x-ray flux produced with a 1-J, 50-psec-duration pulse from a 1.06-..mu..m laser.
- Research Organization:
- AT and T Bell Laboratories, Holmdel, New Jersey 07733
- OSTI ID:
- 6711964
- Journal Information:
- J. Opt. Soc. Am. B: Opt. Phys.; (United States), Journal Name: J. Opt. Soc. Am. B: Opt. Phys.; (United States) Vol. 4:4; ISSN JOBPD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420300* -- Engineering-- Lasers-- (-1989)
ARGON IONS
CADMIUM IONS
CHARGED PARTICLES
DATA
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXPERIMENTAL DATA
GAS LASERS
HELIUM IONS
INDIUM IONS
INFORMATION
IONIZATION
IONIZING RADIATIONS
IONS
LASER-PRODUCED PLASMA
LASERS
METAL VAPOR LASERS
METALS
NUMERICAL DATA
PHOTOIONIZATION
PLASMA
POPULATION INVERSION
RADIATIONS
SOFT X RADIATION
SPECTRA
STIMULATED EMISSION
TANTALUM
TRANSITION ELEMENTS
ULTRAVIOLET SPECTRA
X RADIATION
X-RAY LASERS
XENON IONS
ZINC IONS