damped harmonic oscillator
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- holographic gratings
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- diatomic roto
- infra-red beam folower
- frequency summing
- chronophotography
- push out
- upper state relaxation
- metacrystalline
- intensifying screen
- mode pattern
- optical harmonic generation
- optical head controllers,control ics/modules
- multilongitudianl-mode laser
- geometrical focus
- astrospectrograph camera
- optical deformation