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Coding and authentication by phase measurement modulation response and spectral emission
Coding and authentication by phase measurement modulation response and spectral emission
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机译:通过相位测量调制响应和频谱发射进行编码和认证
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摘要
A method of coding and authentication includes the steps of irradiating a sample with a harmonically modulated radiation and detecting a component of an emission of the sample in response where the component is out of phase with the radiation. The method further includes modulating the intensity of the radiation and identifying the sample by a phase difference between the radiation and the out of phase component.
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