Thomas V. Higgins

Contributing Editor

Thomas V. Higgins was a contributing editor for Laser Focus World, covering science and technology.


Wave nature of light shapes its many properties

Dec. 1, 2000
The transverse wave theory of light explains the characteristics of polarization, interference, and diffraction.
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All rays lead to geometrical optics

Dec. 1, 2000
Based on Fermat's principle, geometrical optics offers a simplified understanding of optical systems.
FIGURE 1. A 1 x 1 optical switch can be created from a Mach-Zehnder interferometer (left), while a directional coupler (right) defines a 2 x 2 optical switch. Both switches are electro-optically controlled and optoelectronically integrated. Note the two possible states of each switch.

Computing with photons at the speed of light

Dec. 1, 1995
The future growth rate of computing power will rely increasingly on unconventional technologies now under development, such as optical computing.