Figure of merit for nonlinear materials in second-order cascaded nonstationary processes
Year: 1999
Authors: Toci G., Vannini M., Salimbeni R.
Autors Affiliation: Istituto di Elettronica Quantistica, Consiglio Nazionale delle Ricerche, Via Panciatichi 56/30, 50127 Firenze, Italy
Abstract: In this paper, we present and discuss an extension and an improvement of the Figure of Merit (FoM) that we introduced in a previous paper. The FoM describes the effectiveness of the frequency doubling materials for ultrashort light pulse modulators via second-order cascaded effects. In the present work, as an input pulse we use a temporal Gaussian pulse so that our perturbative method allows an analytical expression even for the output pulse field after the second pass inside the crystal. For the first time together with the completely analytical expression for the second pass, we report also the exact numerical coefficients for the peak phase modulation. With the FoM it is possible to choose the more appropriate nonlinear material and the use of the cascaded interaction process. Finally, we present for the first time the FoM dependence from the wavelength in the interval 0.5-1 µm, and to a table already shown we added more nonlinear materials.
Journal/Review: LASER AND PARTICLE BEAMS
Volume: 17 (1) Pages from: 109 to: 117
KeyWords: Frequency doublers; Laser pulses; Light modulators; Optical materials; Perturbation techniques; Phase modulation, Cascaded nonstationary processes; Figure of Merit; Gaussian pulse; Nonlinear materials, Nonlinear opticsDOI: 10.1017/S0263034699171088ImpactFactor: 0.553Connecting to view paper tab on IsiWeb: Click here
