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Titel
Diffractive optics for spectral control of the supercontinuum generated in sapphire with femtosecond pulses
Autor(es)
Schlagwort
Supercontinuum generation
Femtosecond lasers
Sapphire
Diffraction
Clasificación UNESCO
2209.10 Láseres
2209.13 Óptica no lineal
Fecha de publicación
2011-03-14
Verlag
Optical Society of America
Citación
Optics Express 19 (6), 4977-4984
Resumen
We propose the use of kinoform diffractive lenses to focus near infrared femtosecond pulses in sapphire crystals for supercontinuum generation. It is shown that a strongly peaked structure appears in the blue region of the supercontinuum spectra. The central wavelength of this peak can be easily controlled by simply changing the lens-crystal distance. Moreover, when compared with the supercontinuum generated with a refractive lens in analogous conditions, the spectral extension of the so-generated continuum is larger. Our results were corroborated for sapphire plates with different thicknesses as well as in other transparent dielectrics such as fused silica.
URI
ISSN
2155-3165
Aparece en las colecciones
- ALF. Artículos [297]