Related Experiment Video
Updated: Jun 15, 2026

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
Published on: February 12, 2014
Fourier transform plane superposition multiplier: theory, experimental results, and discussion
Abstract:
Deuterated cesium dihydrogen arsenate (CDA) is used as a square-law device for optical processing. Placed in the Fourier transform plane, the device squares the incident optical radiation, thus producing the convolutions and correlations of the input functions at the output plane. The convolutions can be detected at the temporal angular frequency omega(a) + omega(b) and the correlations at omega(a) - omega(b), where omega(a) and omega(b) are the frequencies of the input radiation. This paper describes the experiment setup, presents the convolution data obtained, and develops an associated mathematical model of the crystal interaction in an optical data processing system.
Related Concept Videos
The Power Superposition Principle
Properties of Fourier Transform II
The Frequency Shifting property of Fourier Transforms highlights that a shift in the frequency domain corresponds to a phase shift in the time domain. Mathematically, if x(t) has...
Properties of Fourier Transform I
In radio broadcasting, multiple audio signals often need to be transmitted simultaneously. The Fourier...
Superposition Theorem for AC Circuits
The principle of superposition stipulates that the output of a linear circuit with several concurrent inputs is equivalent to the...
Properties of Fourier series I
Properties of DTFT I
The linearity property of DTFTs is fundamental. If two discrete-time signals are multiplied by constants a and b respectively, and then combined to...

