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Definition - "Optical"

9301-001

 

For the purposes of the scientific endeavor called Optical SETI, the word optical is not to be taken as a synonym for the word visible. The word optical is a superset of the ultra-violet, visible and infrared regimes of the electromagnetic spectrum and covers five decades of wavelength from the ultra-violet (0.01 m) to the far-infrared (1 mm).

 

Thus,

Optical SETI Correct

Visible SETI Correct

Infrared SETI Correct

Visible and Infrared SETI Correct

Optical and Infrared SETI Incorrect

 

This is the more modern definition of the word optical which is used today by photonics engineers and scientists. The use of this definition may give physicists and astrophysicists some pain, but it will avoid considerable confusion later. All presenters are requested to adhere to this guideline.

 


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