中国激光, 2017, 44 (9): 0902002, 网络出版: 2017-09-07
飞秒激光脉冲在部分激发气体中的传播 
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Propagation of Femtosecond Laser Pulses in Partially Excited Gas
图 & 表
图 1. 气压为1 atm时,不同η下飞秒激光脉冲在空气传播过程中(a)最大光强I,(b)轴上电子密度ρe,(c)光束半径r和(d)能量E的演化
Fig. 1. Evolution of (a) maximum intensity I, (b) on-axis electron density ρe, (c) beam radius r and (d) energy E of femtosecond laser pulse propagating in air with different η while the air pressure is 1 atm
图 2. 气压为1 atm,η分别为(a) 0%,(b) 0.1%,(c) 0.5%,(d) 1.0%,(e) 5.0%和(f) 10.0%时,激光强度I(r,z)在t=0时刻的空间分布
Fig. 2. Spatial distribution of laser intensity I(r,z) at t=0 moment while the air pressure is 1 atm and η is (a) 0%, (b) 0.1%, (c) 0.5%, (d) 1.0%, (e) 5.0% and (f) 10.0%, respectively
图 3. 气压为1 atm,η分别为(a) 0%,(b) 0.1%,(c) 0.5%,(d) 1.0%,(e) 5.0%和(f) 10.0%时,轴上强度I(t,z)随传播距离和时间的演化
Fig. 3. Evolution of the on-axis intensity I(t,z) with time and propagation distance while the air pressure is 1 atm and η is (a) 0%, (b) 0.1%, (c) 0.5% (d) 1.0%, (e) 5.0% and (f) 10.0%, respectively
图 4. 气压为0.2 atm时,不同η下飞秒激光脉冲在空气传播过程中(a)最大光强I,(b)轴上电子密度ρe,(c)光束半径r和(d)能量E的演化
Fig. 4. Evolution of (a) maximum intensity I, (b) on-axis electron density ρe, (c) beam radius r and (d) energy E of femtosecond laser pulse propagating in air with different η while the air pressure is 0.2 atm
图 5. 气压为0.2 atm,η分别为(a) 0%,(b) 0.1%,(c) 0.5%,(d) 1.0%,(e) 5.0%和(f) 10.0%时,激光强度I(r,z)在t=0时刻的空间分布
Fig. 5. Spatial distribution of laser intensity I(r,z) at t=0 moment while the air pressure is 0.2 atm and η is (a) 0%, (b) 0.1%, (c) 0.5%, (d) 1.0%, (e) 5.0% and (f) 10.0%, respectively
图 6. 气压为0.2 atm,η分别为(a) 0%,(b) 0.1%,(c) 0.5%,(d) 1.0%,(e) 5.0%和(f) 10.0%时,轴上强度I(t,z)随传播距离和时间的演化
Fig. 6. Evolution of the on-axis intensity I(t,z) with time and propagation distance while the air pressure is 0.2 atm and η is (a) 0%, (b) 0.1%, (c) 0.5% (d) 1.0%, (e) 5.0% and (f) 10.0%, respectively
李苏宇, 费德厚, 金明星. 飞秒激光脉冲在部分激发气体中的传播[J]. 中国激光, 2017, 44(9): 0902002. 李苏宇, 费德厚, 金明星. Propagation of Femtosecond Laser Pulses in Partially Excited Gas[J]. Chinese Journal of Lasers, 2017, 44(9): 0902002.
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