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Annales Des Télécommunications, 1997
The basic principles of new ultrafast all-optical processing devices are experimentally demonstrated. One type of device relies on the interaction between an input signal and two colliding spatial solitons of a different wavelength in a planar waveguide with third order nonlinearity. The devices which belong to the second type are based on second order
Barthélémy, Alain +5 more
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The basic principles of new ultrafast all-optical processing devices are experimentally demonstrated. One type of device relies on the interaction between an input signal and two colliding spatial solitons of a different wavelength in a planar waveguide with third order nonlinearity. The devices which belong to the second type are based on second order
Barthélémy, Alain +5 more
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Picosecond spectroscopy using a picosecond continuum
Chemical Physics Letters, 1973Abstract This paper describes the generation of a continuum which has a time duration equal to or less than the picosecond pulse which generates it. The spectrum of the continuum is several thousand wavenumbers in width. Experimental methods are presented which enable one for the first time to conduct absorption spectroscopy measurements in the ...
G.E. Busch, R.P. Jones, P.M. Rentzepis
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Proceedings of the IEEE, 1969
The broad bandwidth and long storage lifetimes of Nd3+: glass and ruby lasers have made possible the generation of picosecond laser pulses having peak powers it excess of one gigawatt and repetition rates in the microwave range. The numerous application areas of these pulses include research in nonlinear optics, transient response of atomic and ...
A. J. DeMaria +3 more
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The broad bandwidth and long storage lifetimes of Nd3+: glass and ruby lasers have made possible the generation of picosecond laser pulses having peak powers it excess of one gigawatt and repetition rates in the microwave range. The numerous application areas of these pulses include research in nonlinear optics, transient response of atomic and ...
A. J. DeMaria +3 more
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Optics Letters, 1989
The reduction of the frequency-locking problem is evaluated analytically for an active laser gyroscope in which active coupling of the longitudinal modes in each direction leads to the formation of counterpropagating short pulses. With proper precautions, an important reduction of the lock-in frequency is expected.
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The reduction of the frequency-locking problem is evaluated analytically for an active laser gyroscope in which active coupling of the longitudinal modes in each direction leads to the formation of counterpropagating short pulses. With proper precautions, an important reduction of the lock-in frequency is expected.
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Picosecond Probing of Picosecond Laser Plasmas
High Energy Density Physics with Subpicosecond Laser Pulses, 1989Summary not available.
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Laser processing of sapphire with picosecond and sub-picosecond pulses
Applied Surface Science, 1997Abstract Laser processing of sapphire using a Ti:sapphire laser at 790 and 395 nm and pulse widths varying between 0.2 and 5 ps is reported. A clear improvement in quality is demonstrated for multi-shot processing with sub-ps laser pulses. For fluences between 3 and 12 J/cm 2 two ablation phases were observed, in agreement with previous work from ...
D Ashkenasi +4 more
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Science (New York, N.Y.), 1976
The ability to directly measure and evaluate ultrafast processes with unprecedented time resolution and reliability has greatly extended our knowledge about the kinetics of primary processes in chemistry and allied physical and biological sciences. Improvements in the reliability and versatility of picosecond techniques should lead to an increase in ...
G E, Busch, P M, Rentzepis
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The ability to directly measure and evaluate ultrafast processes with unprecedented time resolution and reliability has greatly extended our knowledge about the kinetics of primary processes in chemistry and allied physical and biological sciences. Improvements in the reliability and versatility of picosecond techniques should lead to an increase in ...
G E, Busch, P M, Rentzepis
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Optica Acta: International Journal of Optics, 1981
(1981). Picosecond Phenomena II. Optica Acta: International Journal of Optics: Vol. 28, No. 7, pp. 881-882.
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(1981). Picosecond Phenomena II. Optica Acta: International Journal of Optics: Vol. 28, No. 7, pp. 881-882.
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Applied Physics Letters, 1972
A simple off-axis hologram has been recorded on thin bismuth film using a train of picosecond pulses from a mode-locked Nd: glass laser. Due to the ultrashort pulse duration and temporal coherence length of the laser, a time-of-arrival principle is utilized to show the correspondence of a point on the hologram to some specific region of the object.
M.E. Fourney, D.B. Barker
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A simple off-axis hologram has been recorded on thin bismuth film using a train of picosecond pulses from a mode-locked Nd: glass laser. Due to the ultrashort pulse duration and temporal coherence length of the laser, a time-of-arrival principle is utilized to show the correspondence of a point on the hologram to some specific region of the object.
M.E. Fourney, D.B. Barker
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Advances in Picosecond Spectroscopy
Science, 1982Progress in the technology of picosecond spectroscopy in the past few years has made possible the generation of well-characterized pulses emitted by synchronously pumped tunable dye lasers. In addition, the development of sensitive emission and absorption detection methods and the advent of picosecond Raman and coherent anti-Stokes Raman spectroscopy ...
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