Yangliang Li, Chao Shen, Li Shao, Yujun Zhang, "Dynamic image acquisition and particle recognition of laser-induced exit surface particle ejection in fused silica," Chin. Opt. Lett. 17, 101402 (2019)

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- Chinese Optics Letters
- Vol. 17, Issue 10, 101402 (2019)

Fig. 1. Two-frame shadowgraphy experimental setup. HWP, half-wave plate; PD, photodiode; BS, beam splitter; EM, energy meter; FL, focal lens; PBS, polarized beam splitter; MO, microscope objective; filter, interference filter; TL, tube lens; P, polaroid; R, reflector; ND, neutral density attenuator.

Fig. 2. Images of particle ejection target area.

Fig. 3. Particle recognition results of 8300 ns delayed particle ejection target areas.

Fig. 4. Visual example of particle recognition results.

Fig. 5. Comparison of particle recognition effects.

Fig. 6. Algorithm performance evaluation at different delays.

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