2026-09-17T02:25:24Zhttps://gredos.usal.es/oai/request

oai:gredos.usal.es:10366/1233702025-04-30T20:36:09Zcom_10366_133237com_10366_4512com_10366_3823col_10366_133238

Wavelength tuning of femtosecond pulses generated in nonlinear crystals by using diffractive lenses Mínguez Vega, Gladys Romero Vázquez, Carolina Mendoza Yero, Omel Vázquez de Aldana, Javier R. Borrego Varillas, Rocío Méndez, Cruz Andrés, Pedro Láncis, Jesús Climent, Vicent Roso Franco, Luis Nonlinear optics Femtosecond lasers Diffractive lens We demonstrate that diffractive lenses (DLs) can be used as a simple method to tune the central wavelength of femtosecond pulses generated from second-order nonlinear optical processes in birefringent crystals. The wavelength tunability is achieved by changing the relative distance between the nonlinear crystal and the DL, which acts in a focusing configuration. Besides the many practical applications of the so-generated pulses, the proposed method might be extended to other wavelength ranges by demonstrated similar effects on other nonlinear processes, such as high-order harmonic generation. 2014-06-26T07:54:21Z 2014-06-26T07:54:21Z 2014-06-26T07:54:21Z 2010-10-28 info:eu-repo/semantics/article Optics Letters 35 (21), 3694-3696 0146-9592 http://hdl.handle.net/10366/123370 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