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The chemical etching of the surface of a natural diamond single crystal irradiated by subpicosecond laser pulses with a high repetition rate ( f ⩽ 500 kHz ) in air is experimentally investigated. The irradiation has been performed by the second-harmonic ( 515 nm ) radiation of a disk Yb : YAG laser. Dependences of the diamond surface etch rate on the laser energy density and pulse repetition rate are obtained.
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Kononenko et al. (2016) studied this question.
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