Journal ArticleDOI
Generation of optical pulses shorter than 0.1 psec by colliding pulse mode locking
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In this article, a novel passive mode-locking technique was proposed in which two synchronized counterpropagating pulses interact in a thin, saturable absorber to produce a short pulse.Abstract:
We report a novel passive mode‐locking technique in which two synchronized counterpropagating pulses interact in a thin, saturable absorber to produce a short pulse. Continuous stable trains of pulses shorter than 0.1 psec are obtained using a ring laser configuration.read more
Citations
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Book ChapterDOI
Ultra-Fast Optical Probes in Quantum Wells and Superlattices
TL;DR: In this article, it was shown that short optical pulses are the easiest way to generate and to study physical phenomena with very high temporal resolution, and that the properties of materials are to be characterized in vew of high frequency applications.
Journal ArticleDOI
Femtosecond spectroscopy of nonequilibrium carrier distributions
TL;DR: In this article, the generation of ultrashort pulses and their use for femtosecond spectroscopy of nonequilibrium carrier distributions were discussed and examples are given of recent work on multiple quantum well structures.
Journal ArticleDOI
Operational stabilization of a high-power ultrashort dye oscillator-amplifiers laser chain.
TL;DR: Stable operation of a high-power ultrashort dye laser chain is achieved with an inexpensive heating technique that permanently and uniformly warms the lasers to preset operating temperatures.
Book ChapterDOI
Femtosecond Pulse Shaping and Excitation of Molecular Coherences
TL;DR: In this paper, the principal limitation to laser mode-selective chemistry seems to be the rapid intramolecular vibrational redistribution (IVR) associated with anharmonic vibrational couplings at high excitation levels.
Book ChapterDOI
Photo-Induced Refractive Index Changes in Bulk Semiconductors
TL;DR: In this article, the physical processes underlying photo-induced refractive index changes in bulk semiconductors are discussed, including virtual electronic processes such as Kerr and Stark effects caused by below-band gap radiation, free carrier effects which occur during and following single photon or multi-photon absorption processes and thermally induced contribution.
References
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Journal ArticleDOI
Pulse evolution in mode-locked quasi-continuous lasers
TL;DR: In this article, a model of a passively mode-locked quasi-continuous laser is discussed and the evolution of pulses in various cavity configurations is traced and the combined action of amplifier and absorber saturation is shown to lead to rapid pulse compression even when the pulse duration is far shorter than the relaxation time.
Journal ArticleDOI
Tunable distributed‐feedback dye laser
TL;DR: In this article, an efficient broadly tunable dye-laser action with a narrow line output has been demonstrated with a mirrorless laser system using distributed feedback, which was obtained from a spatial modulation of both gain and index of refraction induced by pumping a liquid organic dye solution with fringes formed by the interference of two coherent light beams.
Journal ArticleDOI
Passive mode locking of the cw dye laser
TL;DR: In this article, a stable continuous output of picosecond pulses has been achieved using second-harmonic generation (SHG) measurements, and the pulses are transform limited and are wavelength tunable over the range 5900-6100 A.