Showing 1 - 20 results of 133 for search '"heterodyne"', query time: 0.11s Refine Results
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    Ultra-sensitive heterodyne detection at room temperature in the atmospheric windows by Saemian Mohammadreza, Del Balzo Livia, Gacemi Djamal, Todorov Yanko, Rodriguez Etienne, Lopez Olivier, Darquié Benoit, Li Lianhe, Davies Alexander Giles, Linfield Edmund, Vasanelli Angela, Sirtori Carlo

    Published 2024-01-01
    “…We report room temperature heterodyne detection of a quantum cascade laser beaten with a local oscillator on a unipolar quantum photodetector in two different atmospheric windows, at 4.8 µm and 9 µm. …”
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    Modeling the Heterodyne Efficiency of Array Detector Systems in the Presence of Target Speckle by Yutao Liu, Xiaodong Zeng, Changqing Cao, Zhejun Feng, Zhi Lai, Zhaojin Fan, Ting Wang, Xu Yan, Shuanglin Fan

    Published 2019-01-01
    “…To solve the speckle effect problem in heterodyne detection, an array detector is proposed; heterodyne efficiency is modeled by accounting for speckle and using an additional parameter to simulate coherent summation processing. …”
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    An Active Radar Interferometer Utilizing a Heterodyne Principle-Based Target Modulator by Simon Müller, Andreas R. Diewald, Georg Fischer

    Published 2025-03-01
    “…This study introduces a compact design minimizing peripheral components and leveraging commercial semiconductor technologies operating in the 24 GHz ISM band. A heterodyne principle was adopted to enhance unambiguity and phase coherence without requiring synchronization or separate communication channels. …”
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    True Phase Measurement of Distributed Vibration Sensors Based on Heterodyne $\varphi $-OTDR by Huanhuan Liu, Fufei Pang, Longbao Lv, Xuanwei Mei, Yingxiong Song, Jian Chen, Tingyun Wang

    Published 2018-01-01
    “…We demonstrate a method to truly measure the phase change originated from external vibration by heterodyne phase-sensitive optical time-domain reflectometer (<inline-formula><tex-math notation="LaTeX">$\varphi $</tex-math> </inline-formula>-OTDR). …”
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    Frequency-comb-calibrated Laser Heterodyne Radiometry for Precision Radial Velocity Measurements by Ryan K. Cole, Connor Fredrick, Winter Parts, Max Kingston, Carolyn Chinatti, Josiah Tusler, Suvrath Mahadevan, Ryan Terrien, Scott A. Diddams

    Published 2025-01-01
    “…Our approach is based on a near-infrared laser heterodyne radiometer (LHR) combined with an optical frequency comb calibration, and we show that this combination enables precision, disk-integrated solar spectroscopy with high spectral resolution (∼800,000), high signal-to-noise ratio (∼2600), and absolute frequency accuracy. …”
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    Precise Temperature Measurement Through Wavelength Modulation Heterodyne Phase-Sensitive Dispersion Spectroscopy by Guoquan Wang, Rende Wang, Weiqian Zhao

    Published 2025-05-01
    “…This work proposes a precise temperature measurement method based on wavelength modulation heterodyne phase-sensitive dispersion spectroscopy (WM-HPSDS). …”
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    Microwave quantum heterodyne sensing using a continuous concatenated dynamical decoupling protocol by Charlie J. Patrickson, Valentin Haemmerli, Shi Guo, Andrew J. Ramsay, Isaac J. Luxmoore

    Published 2025-05-01
    “…Abstract By sequentially recording the phase of an AC signal relative to an external clock, quantum heterodyne schemes have recorded MHz and GHz signals with Fourier-limited precision. …”
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    On construction of laser acousto-optical heterodyne interferometers with push-pull measurement of product motions by E. V. Leun

    Published 2020-06-01
    “…The article discusses the implementation of a differential pushpull measurement method using a phase interpolator and a phase meter in an acousto-optical (AO) heterodyne laser interferometer of displacements (in future –a laser interferometer). …”
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    Towards multi-dimensional atomic-level measurement: integrated heterodyne grating interferometer with zero dead-zone by Can Cui, Lvye Gao, Pengbo Zhao, Menghan Yang, Lifu Liu, Yu Ma, Guangyao Huang, Shengtong Wang, Linbin Luo, Xinghui Li

    Published 2025-08-01
    “…This study proposes a novel heterodyne grating interferometer designed to meet the multi-dimensional atomic-level measurement demands of next-generation lithography systems and large-scale atomic-level manufacturing. …”
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