O
Oscar E. Martínez
Researcher at University of Buenos Aires
Publications - 181
Citations - 4974
Oscar E. Martínez is an academic researcher from University of Buenos Aires. The author has contributed to research in topics: Laser & Cathodoluminescence. The author has an hindex of 25, co-authored 174 publications receiving 4785 citations. Previous affiliations of Oscar E. Martínez include Bell Labs & British Hospital.
Papers
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Negative dispersion using pairs of prisms.
TL;DR: It is shown that pairs of prisms can have negative group-velocity dispersion in the absence of any negative material dispersion.
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3000 times grating compressor with positive group velocity dispersion: Application to fiber compensation in 1.3-1.6 µm region
TL;DR: In this article, a telescope is placed between two grating compressors in order to modify the phase shift for different wavelengths of different wavelengths, and the telescope simultaneously provides high magnification to compensate more than 90 km of standard monomode fibers in the 1.6 μm region, yielding compression factors as high as 3000.
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Negative group-velocity dispersion using refraction
TL;DR: In this article, it was shown that a negative contribution to the group-velocity dispersion always accompanies angular dispersion and structures, such as slabs and prisms, that use this contribution to provide adjustable group velocity dispersion.
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Grating and prism compressors in the case of finite beam size
TL;DR: In this article, the authors used the Kirchhoff-fresnel integral and an amplitude transfer operator for the grating and prism compressors for the case of finite beam size, and showed that even for well-collimated beams, pulse broadening may occur (mainly because of the wavelength dependence of the lateral walkoff).
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Direct determination of the amplitude and the phase of femtosecond light pulses.
TL;DR: A direct measurement of the amplitude and the phase of a femtosecond light pulse is performed for the first time to the authors' knowledge, and the time dependence of the field can be easily obtained by a Fourier transform.