Spectroscopic Sensing of O2 –C2H2 –C2H4 flames for diamond growth using femtosecond filamentation

Yunshen Zhou (1) , Mengmeng Wang (1) , Yao Lu (1) , Jean-François Silvain (2) , Yongfeng Lu (1)

1 Department of Electrical Engineering
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

Based on the femtosecond laser-induced filamentation (FLIF) spectroscopic investigations, it is found that growing diamond crystals of preferential orientations depends highly on C2/OH ratio. At the C2/OH ratio around 110.00, {100}-oriented diamond crystals are preferentially grown, while at the C2/OH ratio around 133.34, {111}-oriented diamond crystals are preferentially grown.

Mots clés: diamond; femtosecond laser-induced filamentation; resonant vibrational excitation

Domaines: Matériaux

Yunshen Zhou, Mengmeng Wang, Yao Lu, Jean-François Silvain, Yongfeng Lu. Spectroscopic Sensing of O2 –C2H2 –C2H4 flames for diamond growth using femtosecond filamentation. Crystal Growth & Design, 2017, 17 (6), pp.3443-3449. ⟨10.1021/acs.cgd.7b00385⟩. ⟨hal-01549533⟩