Cascaded stimulated polariton scattering in a dual-Stokes cavity terahertz parametric oscillator.

• Tác giả: Feilong Gao, Mingzhe Jiang, Qi Song, Zecheng Wang, Yiyan Xie, Bingyuan Zhang
• Ngôn ngữ: eng
• Thông tin xuất bản: United States : Optics letters , 2025
• Bộ sưu tập: NCBI
• ID: 89293

Tóm tắt

Terahertz polariton sources based on the stimulated polariton scattering (SPS) can generate the terahertz wave with a narrow linewidth and continuous tunability. A single SPS process has limited conversion efficiency due to the Manley-Rowe relation. In this Letter, we implement a dual-Stokes cavity structure within an intracavity terahertz parametric oscillator (TPO) to achieve a two-order cascaded SPS process. As a result, the dual-Stokes cavity TPO demonstrates an increment of 29% in terahertz output power compared to that obtained in the non-cascaded SPS configuration.