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您的检索式：作者名="Edward P.J.Parrott"
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| 1 | Calibration method to improve the accuracy of THz imaging and spectroscopy in reflection geometry显示文摘We introduce a novel method to accurately extract the optical parameters in terahertz reflection imaging. Our method builds on standard self-referencing methods using the reflected signal from the bottom of the imaging window material to further compensate for time-dependent system fluctuations and position-dependent variation in the window thickness. Our proposed method not only improves the accuracy, but also simplifies the imaging procedure and reduces measurement times. | Shuting Fan Edward P.J.Parrott Benjamin S.Y.Ung Emma Pickwell-MacPherson | 2016 | Photonics Research2016，4，3： | 3 |
| 2 | Robust and accurate terahertz time-domain spectroscopic ellipsometry显示文摘In this work, we show how fiber-based terahertz systems can be robustly configured for accurate terahertz ellipsometry. To this end, we explain how our algorithms can be successfully applied to achieve accurate spectroscopic ellipsometry with a high tolerance on the imperfect polarizer extinction ratio and pulse shift errors. Highly accurate characterization of transparent, absorptive, and conductive samples comprehensively demonstrates the versatility of our algorithms. The improved accuracy we achieve is a fundamental breakthrough for reflectionbased measurements and overcomes the hurdle of phase uncertainty. | XUEQUAN CHEN EDWARD P.J.PARROTT ZHE HUANG HAU-PING CHAN EMMA PICKWELL-MACPHERSON | 2018 | Photonics Research2018，6，8： | 2 |
| 3 | Exploiting a metal wire grating in total internal reflection geometry to achieve achromatic polarization conversion显示文摘We demonstrate how a metal wire grating can work as a 45° polarization converter, a quarter-wave retarder, and a half-wave retarder over a broadband terahertz range when set up in total internal reflection geometry. Classical electromagnetic theory is applied to understand the mechanism, and equations to calculate the polarization state of reflected light are derived. We use a metal grating with a period of 20 μm and width of 10 μm on a fused silica surface: linearly polarized terahertz light incident from fused silica with a supercritical incident angle of 52° is totally reflected by the metal grating and air. The polarization of the terahertz light is rotated by 45°, 90°, and circularly polarized by simply rotating the wire grating. The performance is achromatic over the measured range of 0.1–0.7 THz and comparable to commercial visible light wave retarders. | XUDONG LIU XUEQUAN CHEN EDWARD P.J.PARROTT EMMA PICKWELL-MACPHERSON | 2017 | Photonics Research2017，5，4： | 0 |
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