ELECTROMAGNETIC WAVE MEASURING APPARATUS, METHOD, AND RECORDING MEDIUM
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United States of America
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Issued Date -
Mar 6, 2025
app pub date -
May 24, 2024
filing date -
May 24, 2024
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Abstract
An electromagnetic wave measuring apparatus irradiates an irradiation target having a measuring target with a pre-irradiation electromagnetic wave and, based on a post-irradiation electromagnetic wave obtained, measures the measuring target. The post-irradiation electromagnetic wave has a response component from the measuring target and a background component corresponding to the pre-irradiation electromagnetic wave. The electromagnetic wave measuring apparatus includes a first frequency spectrum acquiring section, a second frequency spectrum acquiring section, and a subtracting section. The first frequency spectrum acquiring section acquires a frequency spectrum of a first signal that includes the background component and the response component of the post-irradiation electromagnetic wave. The second frequency spectrum acquiring section acquires a frequency spectrum of a second signal that includes the background component of the post-irradiation electromagnetic wave. The subtracting section subtracts the frequency spectrum of the second signal from the frequency spectrum of the first signal.
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