Systems and methods for processing and analyzing terahertz waveforms
First Claim
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1. A method of processing and analyzing Terahertz waveforms returned by a medium having at least one constituent, comprising the steps of:
- receiving terahertz waveforms that are one of transmitted through or reflected by the medium;
obtaining digitally sampled replicas of the received terahertz waveforms;
compressing the digitally sampled replicas into respective data sets of reduced size;
displaying said reduced size data sets as pixels of an image of the medium, each pixel being representative of the terahertz waveform returned from a distinct portion of the medium illuminated by an incident terahertz pulse.
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Abstract
A time-domain signal processing system for displaying, classifying, and recognizing temporal and spectral features in terahertz waveforms returned form materials. Specifically, novel techniques are described for classifying and analyzing the free induction decay exhibited by gases excited by far-infrared (terahertz) pulses. Illustratively, a simple geometric picture may be used for the classification of the waveforms measured for unknown gas species and gas mixtures.
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13 Claims
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1. A method of processing and analyzing Terahertz waveforms returned by a medium having at least one constituent, comprising the steps of:
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receiving terahertz waveforms that are one of transmitted through or reflected by the medium; obtaining digitally sampled replicas of the received terahertz waveforms;
compressing the digitally sampled replicas into respective data sets of reduced size;displaying said reduced size data sets as pixels of an image of the medium, each pixel being representative of the terahertz waveform returned from a distinct portion of the medium illuminated by an incident terahertz pulse. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification