Sub-Doppler Spectroscopy With a CMOS Transmitter
Sub-Doppler Spectroscopy With a CMOS Transmitter
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使用 CMOS 发射器的亚多普勒光谱
DOI：
10.1109/tthz.2017.2773365
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发表时间：
2018
影响因子：
3.2
通讯作者：
Mau
中科院分区：
文献类型：
--
作者：
Deacon J. Nemchick;B. Drouin;A. Tang;Yanghyo Kim;Mau
在高分辨率亚多普勒(Lamb-DIP)吸收光谱仪中，采用了工作带宽为90~105 GHz的紧凑型低功耗互补金属氧化物半导体(CMOS)发射机作为辐射源。源输出可以是频率和幅度调制的，从而允许应用分子光谱学中常用的高灵敏度检测方案。实验表明，该发射机具有足够的输出功率来进行光谱烧孔饱和实验，并具有足够低的相位噪声底限，可以在传统毫米波光源的测量误差范围内，以10ppm的精度确定谱线位置。
A compact and low-power complementary metal oxide semiconductor (CMOS)-based transmitter with an operational bandwidth of 90–105 GHz has been deployed as the radiation source in a high-resolution sub-Doppler (Lamb-dip) absorption spectrometer. The source output can be both frequency and amplitude modulated allowing for the application of highly sensitive detection schemes commonly used in molecular spectroscopy. The CMOS transmitter has been shown to have sufficient output power to perform spectral hole burning saturation experiments and a phase-noise floor low enough to determine spectral line positions with a precision of 1 part in 10 $^{\mathbf 9}$ to accuracy within the error of measurements made with traditional millimeter-wave sources.