second harmonic generation
次谐波振荡

• coaxial load
• coaxial relay
• coaxial spark-gap
• coaxial switch
• coaxidal pump laser
• coaxswith
• cobalt
• cobalt glass
• Coddington lens
• Coddington magifier
• code
• code aperture
• code bit
• code converter
• coded aperture imaging
• coded circle
• coded data
• coded-digital modulation
• coded disk
• coded Fourier-transform hologram
• coded image
• coded infrared wavelength
• code discriminator
• coded laser beam
• coded reference wave hologram