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