Common-path spectral interferometry for single-shot terahertz electro-optics detection

Zheng Shuiqin; Pan Xinjian; Cai Yi; Lin Qinggang; Li Ying; Xu Shixiang; Li Jingzhen; Fan Dianyuan

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Common-path spectral interferometry for single-shot terahertz electro-optics detection

机译：单次Terahertz电光检测的公共路径光谱干涉测量

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We propose a common-path spectral interferometer for single- shot terahertz (THz) electro-optics (EO) detection, where a probe pulse pair with orthogonal polarizations and a relative time delay are generated by simply using a birefringent plate. One of them, as the object, transmits through a THz EO crystal with THz phase modulation, while the other goes through the crystal without any phase imposed by target the THz field as the reference. The coaxial propagation of the pulse pair can effectively reduce the noises due to mechanical vibrations, air turbulences, and temperature fluctuations in the traditional noncommon- path spectral interferometers. Our experiments show that, for a given target THz pulse field, the measured THz signals in a single-shot mode have a signal-to-noise ratio (SNR) of 41.2 with our THz common-path spectral interferometer, but 7.91 with a THz Mach-Zehnder spectral interferometer; thus, our design improves the SNR of the THz signal by about 5.2 times. (C) 2017 Optical Society of America

机译：我们提出了一种用于单拍太赫兹（THz）电光（EO）检测的公共路径光谱干涉仪，其中通过简单地使用双折射板，产生具有正交偏振和相对时间延迟的探针脉冲对。其中一个是对象，通过THz的EO晶体通过THz相位调制来发送，而另一个在晶体中通过晶体而没有通过将THZ字段施加的任何相位作为参考。由于机械振动，空气湍流和传统的非通道路径光谱干涉仪中的温度波动，脉冲对的同轴传播可以有效地降低噪声。我们的实验表明，对于给定的目标THz脉冲场，单次拍摄模式中的测量的THz信号具有41.2的信噪比，我们的THz公共路径光谱干涉仪，但是7.91 Mach-Zehnder光谱干涉仪;因此，我们的设计将THz信号的SNR改善了约5.2倍。（c）2017年光学学会

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来源
《Optics Letters》 |2017年第21期|共4页
作者
Zheng Shuiqin; Pan Xinjian; Cai Yi; Lin Qinggang; Li Ying; Xu Shixiang; Li Jingzhen; Fan Dianyuan;
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作者单位

Shenzhen Univ Coll Elect Sci &

Technol Shenzhen Key Lab Micronano Photon Informat Techno Shenzhen 518060 Guangdong Peoples R China;

Shenzhen Univ Coll Elect Sci &

Technol Shenzhen Key Lab Micronano Photon Informat Techno Shenzhen 518060 Guangdong Peoples R China;

Shenzhen Univ Coll Elect Sci &

Technol Shenzhen Key Lab Micronano Photon Informat Techno Shenzhen 518060 Guangdong Peoples R China;

Shenzhen Univ Coll Elect Sci &

Technol Shenzhen Key Lab Micronano Photon Informat Techno Shenzhen 518060 Guangdong Peoples R China;

Shenzhen Univ Minist Educ &

Guangdong Prov Key Lab Optoelect Devices &

Syst SZU NUS Collaborat Innovat Ctr Optoelect Sci &

Te Shenzhen 518060 Guangdong Peoples R China;

Shenzhen Univ Coll Elect Sci &

Technol Shenzhen Key Lab Micronano Photon Informat Techno Shenzhen 518060 Guangdong Peoples R China;

Shenzhen Univ Coll Elect Sci &

Technol Shenzhen Key Lab Micronano Photon Informat Techno Shenzhen 518060 Guangdong Peoples R China;

Shenzhen Univ Minist Educ &

Guangdong Prov Key Lab Optoelect Devices &

Syst SZU NUS Collaborat Innovat Ctr Optoelect Sci &

Te Shenzhen 518060 Guangdong Peoples R China;

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正文语种 eng
中图分类计量学;光学;
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专利

1. Common-path spectral interferometry for single-shot terahertz electro-optics detection (vol 42, pg 4263, 2017) [J] . Zheng Shuiqin, Pan Xinjian, Cai Yi, Optics Letters . 2018,第2期

机译：单次Terahertz电光检测的公共路径光谱干涉测量（Vol 42，PG 4263,2017）
2. Dependence On Chirp Rate And Spectral Resolution Of The Terahertz Field Pulse Waveform Measured By Electro-optic Detection Using A Chirped Optical Pulse And A Spectrometer And Its Effect On Terahertz Spectroscopy [J] . H. Murakami, K. Shimizu, M. Katsurada, Journal of Applied Physics . 2008,第10期

机译：Chi光脉冲和分光计电光检测对太赫兹场脉冲波形的Chi频率和光谱分辨率的依赖性及其对太赫兹光谱的影响
3. Shot noise reduced terahertz detection via spectrally postfiltered electro-optic sampling [J] . Michael Porer, Jean-Michel Menard, Rupert Huber Optics Letters . 2014,第8期

机译：通过频谱后滤波的电光采样，散粒噪声降低了太赫兹检测
4. Single-shot, femtosecond resolution, terahertz pulse measurement without a femtosecond probe via electro-optic transposition [C] . David A. Walsh, Edward W. Snedden, Steven P. Jamison International Conference on Infrared, Millimeter, and Terahertz Waves . 2016

机译：飞秒单次飞秒分辨率，太赫兹脉冲测量（无需飞秒探针）
5. Efficient object detection and tracking via hyperspectral and terahertz imaging. [D] . Habib, Md. Habib Ullah. 2013

机译：通过高光谱和太赫兹成像进行有效的物体检测和跟踪。
6. Single-Shot Measurement of Temporally-Dependent Polarization State of Femtosecond Pulses by Angle-Multiplexed Spectral-Spatial Interferometry [O] . Ming-Wei Lin, Igor Jovanovic -1

机译：飞秒脉冲的时间相关偏振态的单次测量采用角度复用光谱空间干涉法
7. Shot noise reduced terahertz detection via spectrally post-filtered electro-optic sampling [O] . Porer, Michael, Ménard, Jean-Michel, Huber, Rupert 2016

机译：射击噪声通过光谱后滤波减少了太赫兹检测电光采样

Common-path spectral interferometry for single-shot terahertz electro-optics detection

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