背向二次谐波
backward second harmonic generation SHG
低频奇次谐波
low-frequency odd harmonics
单次谐波补偿
single order harmonic compensation
次谐波振荡
secondary harmonic generation
second harmonic generation
subharmonic oscillation
sub-harmonic oscillation
次谐波聚束器
Subharmonic buncher and design
sub-harmonic buncher SHB
subharmonic buncher
sub-harmonic buncher
磁场的高次谐波
High harmonic waves of magnetic field