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