2024-03-29T08:09:47Zhttps://gredos.usal.es/oai/requestoai:gredos.usal.es:10366/1233852022-02-07T15:38:32Zcom_10366_133237com_10366_4512com_10366_3823col_10366_133238
Diffractive optics for spectral control of the supercontinuum generated in sapphire with femtosecond pulses
Romero Vázquez, Carolina
Borrego Varillas, Rocío
Camino, Acner
Mínguez Vega, Gladys
Mendoza Yero, Omel
Hernández-Toro, Juan
Vázquez de Aldana, Javier R.
Supercontinuum generation
Femtosecond lasers
Sapphire
Diffraction
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.
2014-07-06
2014-07-06
2011-03-14
info:eu-repo/semantics/article
info:eu-repo/semantics/article
Optics Express 19 (6), 4977-4984
2155-3165
http://hdl.handle.net/10366/123385
eng
https://creativecommons.org/licenses/by-nc-nd/3.0/
info:eu-repo/semantics/openAccess
Attribution-NonCommercial-NoDerivs 3.0 Unported
Optical Society of America