Most research projects focus on replacing current computer components with optical equivalents, resulting in an optical digital computer system processing binary data.
Light pulse generators are the optical equivalent to electrical pulse generators with rep rate, delay, width and amplitude control.
It is in many ways the optical equivalent of X-Ray Computed Tomography or the medical CT scan.
This motion displaces the light of an object toward the long-wavelength, or red, end of the spectrum - the optical equivalent of the drop in pitch of a receding train's whistle.
Compare radar CCD and optical equivalents of the same subject.
Not that the brain is a efficient computer, being liquid cooled and all... photons would be nice, but we seems to have trouble finding the optical equivalent of a semiconductor...
It forms the optical equivalent of reverberating sound; stepping onto it can seem to lift you, as great music does.
This creates a cone of light known as Cherenkov radiation, which is the optical equivalent to a sonic boom.
Optical feedback is the optical equivalent of acoustic feedback.
The switching creates the optical equivalent of a "1" or "0," which are the basic elements in computing.