Molecular Detection for Unconcentrated Gas With ppm Sensitivity Using 220-to-320-GHz Dual-Frequency-Comb Spectrometer in CMOS

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Affiliation of Author(s):Massachusetts Institute of Technology (MIT)

Journal:IEEE Transaction on Biomedical Circuits and Systems (TBioCAS)

Place of Publication:USA

Key Words:CMOS,frequencycomb,molecularspectroscopy, terahertz, transceiver

Abstract:Millimeter-wave/terahertz rotational spectroscopy of polar gaseous molecules provides a powerful tool for complicated gas mixture analysis. In this paper, a 220-to-320-GHz dual-frequency-comb spectrometer in 65-nm bulk CMOS is presented, along with a systematic analysis on fundamental issues of rotational spectrometer, including the impacts of various noise mechanisms, gas cell, molecular properties, detection sensitivity, etc. Our comb spectrometer, based on a high-parallelism architecture, probes gas sample with 20 comb lines simultaneously. It does not only improve the scanning speed by 20×

Note:https://ieeexplore.ieee.org/document/8331906

All the Authors:B. Perkins,Z. Wang

First Author:Cheng Wang

Indexed by:Journal

Correspondence Author:Ruonan Han

Document Code:10.1109/TBCAS.2018.2812818

Discipline:Engineering

First-Level Discipline:Electronic science and technology

Volume:12

Issue:3

Page Number:709-721

Translation or Not:no

Date of Publication:2018-06-10

Date of Publication:2018-06-10