The absorption lines in the optical spectrum show radial velocity variations, although there is significant uncertainty about the period.
12.
This way each signal occupies a different portion of the optical spectrum surrounding the centre frequency of the optical carrier.
13.
Therefore, optical spectrum of direct-gap semiconductors produces an absorption resonance only for the s-like state.
14.
An "'optical waveguide "'is a physical structure that guides electromagnetic waves in the optical spectrum.
15.
The formation of resonator modes and thus pronounced structures in the optical spectrum and / or to spectral narrowing are avoided.
16.
SURF III now serves as the U . S . national standard for source-based radiometry throughout the generalized optical spectrum.
17.
In September 2008, the Subaru telescope obtained the optical spectrum of Tycho Brahe's supernova near maximum brightness from a scattered-light echo.
18.
The tip of an angle-cut optical fiber, visible on the right, excites the modes in the red region of the optical spectrum.
19.
In addition to examination of the universe in the optical spectrum, astronomers have increasingly been able to acquire information in other portions of the electromagnetic spectrum.
20.
The optical spectrum is part of the electromagnetic energy spectrum which consists of ultraviolet, visible, and near, middle, and far-infrared energy.
