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- W3130056688 abstract "Rotational Doppler effect (RDE) has attracted much attention in recent years which opens new avenues to angular velocity measurement. However, most previous studies used single-frequency vortex light as the detection beam so that the rotational Doppler signal is in the low frequency domain where most of noise signals exist. In this article, we use the dual-frequency 2-fold multiplexed vortex light as the probe beam and transform the Doppler signals from the low frequency domain to the high frequency domain successfully. The results show hardly any noise compared with the measurement in the low frequency domain. More importantly, the direction of rotation can be obtained directly by comparing the modulated signal and the reference signal. Our work demonstrates a new detection method for the RDE and provides a reference for its practical application." @default.
- W3130056688 created "2021-03-01" @default.
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- W3130056688 date "2021-02-24" @default.
- W3130056688 modified "2023-10-16" @default.
- W3130056688 title "Direction-sensitive detection of a spinning object using dual-frequency vortex light" @default.
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- W3130056688 doi "https://doi.org/10.1364/oe.418192" @default.
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