2026-09-17T16:04:51Zhttps://gredos.usal.es/oai/request

oai:gredos.usal.es:10366/1528462025-06-06T10:37:43Zcom_10366_133237com_10366_4512com_10366_3823col_10366_133238

00925njm 22002777a 4500 dc Fernández Galán, Marina author Conejero Jarque, Enrique author San Román Álvarez de Lara, Julio author 2023-04 Advances in the generation of the shortest optical laser pulses down to the sub-cycle regime promise to break new ground in ultrafast science. In this work, we theoretically demonstrate the potential scaling capabilities of soliton self-compression in hollow capillary fibers with a decreasing pressure gradient to generate near-infrared sub-cycle pulses in very different dispersion and nonlinearity landscapes. Independently of input pulse, gas and fiber choices, we present a simple and general route to find the optimal self-compression parameters which result in high-quality pulses. The use of a decreasing pressure gradient naturally favors the self-compression process, resulting in shorter and cleaner sub-cycle pulses, and an improvement in the robustness of the setup when compared to the traditional constant pressure approach. Fernández Galán, Marina. Conejero Jarque, Enrique. San Román Álvarez de Lara, Julio. 2023. «+Scalable sub-cycle pulse generation by soliton self-compression in hollow capillary fibers with a decreasing pressure gradient». J. Eur. Opt. Society-Rapid Publ. 19(1):15. doi: 10.1051/jeos/2023011. http://hdl.handle.net/10366/152846 10.1051/jeos/2023011 1990-2573 Ultrafast nonlinear optics Hollow capillary fibers Soliton-self compression Sub-cycle pulses Scalable sub-cycle pulse generation by soliton self-compression in hollow capillary fibers with a decreasing pressure gradient