Exploring shot noise and Laser Doppler imagery with Heterodyne Holography

M. Gross, F. Verpillat, F. Joud, M. Atlan
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Abstract

Heterodyne Holography is a variant of Digital Holography, where the optical frequencies of signal and reference arms can be freely adjusted by acousto-optic modulators. Heterodyne Holography is an extremely versatile and reliable holographic technique, which is able the reach the shot noise limit in sensitivity at very low levels of signal. Frequency tuning enables Heterodyne Holography to become a Laser Doppler imaging technique that is able to analyze various kinds of motion.
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利用外差全息技术探索射散噪声和激光多普勒成像
外差全息术是数字全息术的一种变体,其中信号臂和参考臂的光学频率可以通过声光调制器自由调节。外差全息技术是一种非常通用和可靠的全息技术,它能够在非常低的信号水平下达到灵敏度的散点噪声限制。频率调谐使外差全息术成为一种能够分析各种运动的激光多普勒成像技术。
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