Wenchao Zhou, Qianhe Wei, Chen Peng, Dequan Huang, Rihong Zhu. Reflectivity measurement of highly reflective mirrors at spectral band of 2.7−3.0 μm[J]. High Power Laser and Particle Beams, 2024, 36(1): 011002
- High Power Laser and Particle Beams
- Vol. 36, Issue 1, 011002 (2024)
Fig. 1. Absorption spectrum of water vapor in air at 296 K temperature and 0.1 MPa pressure
Fig. 2. Schematic diagram of experimental setup for high reflectivity measurement at 2.9 μm. AOM: Acoustic-Optic Modulator
Fig. 3. A typical cavity ring-down signal and the corresponding single-exponential fit measured at 2.9 μm
Fig. 4. Ring-down time evolution measured during N2 purging
Fig. 5. Average nominal reflectivity of the cavity mirrors measured versus the cavity length of the initial cavity
Fig. 6. Reflectivity measurement of a highly reflective mirror at different cavity lengths with and without N2 purging
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