post-acceleration focusing
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- metacrystalline
- Varotal lens
- upper state relaxation
- chronophotography
- multilongitudianl-mode laser
- time-averaged shadow-moire method
- diatomic roto
- push out
- visible emissivity
- optical head controllers,control ics/modules
- holographic gratings
- geometrical focus
- frequency summing
- astrospectrograph camera
- infra-red beam folower
- filters
- optical harmonic generation
- mode pattern
- optical deformation
- intensifying screen