Yiming LU, Bingrong GAO, Xueqing LIU, Qidai CHEN. Fabrication of High Temperature Resistant Geometric Phase Element Inside Sapphire by Femtoesecond Laser（Invited）[J]. Acta Photonica Sinica, 2021, 50(6): 71
- Acta Photonica Sinica
- Vol. 50, Issue 6, 71 (2021)
Fig. 1. Influence of laser repetition on laser scanning accurancy
Fig. 2. Influence of laser energy on laser scanning accurancy
Fig. 3. Influence of laser polarization on nanogratings
Fig. 4. Laser polarization direction changes the direction of the slow axis of birefringence
Fig. 5. Geometric phase elements in sapphire
Fig. 6. Focusing test image of geometric phase Fresnel zone plate at high temperature
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