Abstract

We experimentally demonstrate the efficient generation of circularly polarized pulses tunable from the vacuum to deep ultraviolet (160–380 nm) through resonant dispersive wave emission from optical solitons in a gas-filled hollow capillary fiber. In the deep ultraviolet, we measure up to 13 µJ of pulse energy, and from numerical simulations, we estimate the shortest output pulse duration to be 8.5 fs. We also experimentally verify that simply scaling the pulse energy by 3/2 between linearly and circularly polarized pumping closely reproduces the soliton and dispersive wave dynamics. Based on previous results with linearly polarized self-compression and resonant dispersive wave emission, we expect our technique to be extended to produce circularly polarized few-fs pulses further into the vacuum ultraviolet, and few to sub-fs circularly polarized pulses in the near infrared.

© 2021 Optical Society of America

Generation of broadband circularly polarized deep-ultraviolet pulses in hollow capillary fibers

Athanasios Lekosiotis, Federico Belli, Christian Brahms, and John C. Travers
Opt. Lett. 45(20) 5648-5651 (2020)

High-energy ultraviolet dispersive-wave emission in compact hollow capillary systems

Christian Brahms, Teodora Grigorova, Federico Belli, and John C. Travers
Opt. Lett. 44(12) 2990-2993 (2019)

Efficient and compact source of tuneable ultrafast deep ultraviolet laser pulses at 50 kHz repetition rate

Christian Brahms and John C. Travers
Opt. Lett. 48(1) 151-154 (2023)

Resonant dispersive wave emission in hollow capillary fibers filled with pressure gradients

Christian Brahms, Federico Belli, and John C. Travers
Opt. Lett. 45(16) 4456-4459 (2020)

Measurements of microjoule-level, few-femtosecond ultraviolet dispersive-wave pulses generated in gas-filled hollow capillary fibers

Cheng Zhang, Tiandao Chen, Jinyu Pan, Zhiyuan Huang, Donghan Liu, Ding Wang, Fei Yu, Dakun Wu, Yu Zheng, Ruochen Yin, Xin Jiang, Meng Pang, Yuxin Leng, and Ruxin Li
Opt. Lett. 47(18) 4830-4833 (2022)