Optics Encyclopedia - LightSeek-DeepLightSeek

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diffraction-limited beams Definition:A beam whose divergence angle reaches the theoretically achievable minimum for a given beam waist radius. For
mirror Definition:A device that can reflect light. A mirror is an optical device capable of reflecting light. However, strictly
wavenumber Definition:Phase delay per unit length, or this value divided by 2π. There are different definitions for wavenumber.

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