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