Work

Filament-induced supercontinuum generation in the non-centrosymmetric nonlinear crystal

Year: 2026

Type: article

Abstract: We report on the experimental investigation of filament-induced supercontinuum (SC) generation in a non-centrosymmetric KTA nonlinear crystal driven by hundreds of femtosecond laser pulses at 1030 nm. Driven by the s-polarized laser, a visible SC spanning from 400 nm to 900 nm is achieved when the peak power of the driving laser exceeds 5 times the critical power. Polarization analysis reveals distinct spectral and spatial profiles for the generated s- and p-polarized supercontinuum components. This work demonstrates the feasibility of controlling filament-induced nonlinear processes in nonlinear crystals, supporting their potential use in cascaded nonlinear optical applications.

Source: Optics Express

DOI: 10.1364/oe.584320

Authors: Zezi Chang, Feitong Dang, Zhongben Pan, Kejian Yang, Tao Li, Tianli Feng

Institutions: Shandong University, State Key Laboratory of Crystal Materials

Language: English

Topic: Laser-Matter Interactions and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: National Natural Science Foundation of China, Natural Science Foundation of Shandong Province, National Key Research and Development Program of China