High-performance frequency stabilization of ultraviolet diode lasers by using dichroic atomic vapor spectroscopy and transfer cavity

Shen Danna¹, Ding Liangyu¹, Zhang Qiuxin¹, Zhu Chenhao¹, Wang Yuxin¹, Zhang Wei^{1, 2}, Zhang Xiang^{1, 2, †}

(a) The level structure of Zeeman levels within the excited manifold ¹P₁ of the Yb atom. (b) The Zeeman level absorption valleys (black dashed) corresponding to the three transitions shown in (a) can be well identified in the absorption spectrum. (c) The absorption spectrum of the π (top, black solid) and σ^– (top, gray solid) polarization, and the error signal (bottom, black solid).