Accession Number : ADA140800

Title :   Study of VUV Generation by Coherent Resonant Frequency Mixing in Metal Vapors.

Descriptive Note : Annual rept. 1 Oct 82-31 0ct 83,


Personal Author(s) : Diels,J C

PDF Url : ADA140800

Report Date : 30 Jan 1984

Pagination or Media Count : 54

Abstract : The properties of multiphoton resonances (two, four or more) are exploited to enhance up-frequency conversion rates. Simultaneously, the property of reversibility of coherent interaction is used to minimize the resonant losses (two-photon, four photon absorption). A source of tunable, near bandwidth limited pulses, of more than a millijoule energy per pulse has been developed. A new scheme of computer controlled data acquisition system made it possible to analyse, for the first time, the temporal coherence properties of the amplified pulses (at a rate of 20 pps). The method of interferometric autocorrelation has been applied to the study of multiphoton coherences. Two photon transmission measurements were performed through a heat pipe containing lithium vapor. (Author)

Descriptors :   *Pulse amplifiers, *Dye lasers, *Phonons, *Resonant frequency, *Ionization, Metal vapors, Coherence, Lithium, Pulses, Vacuum ultraviolet radiation, Tunable lasers, High power, Heat pipes, Oscillators, Computer applications, Data acquisition, Interferometry

Subject Categories : Electrical and Electronic Equipment
      Lasers and Masers
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE