High precision dual-modulation differential terahertz ATR sensor for liquid measurements

Xiujun Zheng; Thomas Gevart; Guilhem Gallot

doi:10.1364/OL.430324

High precision dual-modulation differential terahertz ATR sensor for liquid measurements

Xiujun Zheng
, Thomas Gevart
, Guilhem Gallot

Institut Polytechnique de Paris

Research output: Contribution to journal › Article › peer-review

Abstract

We describe a highly sensitive and stable quantum-cascade-laser-based attenuated total reflection (ATR) terahertz sensor for the detection of very low concentration solutions, using a dual-modulation differential approach and ATR geometry. This sensor offers a very high dynamic range and a long-term stability of 40 dB, which extends the potential of terahertz radiation for the analysis of liquid and biological samples. The performance is illustrated by measurements on standard solutions of ions, sugars, and proteins, for concentrations down to 1 µM.

Original language	English
Pages (from-to)	4045-4048
Number of pages	4
Journal	Optics Letters
Volume	46
Issue number	16
DOIs	https://doi.org/10.1364/OL.430324
Publication status	Published - 15 Aug 2021

Access to Document

10.1364/OL.430324

Cite this

@article{24bdc66d375d419cbff835301a2604f9,

title = "High precision dual-modulation differential terahertz ATR sensor for liquid measurements",

abstract = "We describe a highly sensitive and stable quantum-cascade-laser-based attenuated total reflection (ATR) terahertz sensor for the detection of very low concentration solutions, using a dual-modulation differential approach and ATR geometry. This sensor offers a very high dynamic range and a long-term stability of 40 dB, which extends the potential of terahertz radiation for the analysis of liquid and biological samples. The performance is illustrated by measurements on standard solutions of ions, sugars, and proteins, for concentrations down to 1 µM.",

author = "Xiujun Zheng and Thomas Gevart and Guilhem Gallot",

note = "Publisher Copyright: {\textcopyright} 2021 Optical Society of America",

year = "2021",

month = aug,

day = "15",

doi = "10.1364/OL.430324",

language = "English",

volume = "46",

pages = "4045--4048",

journal = "Optics Letters",

issn = "0146-9592",

number = "16",

}

TY - JOUR

T1 - High precision dual-modulation differential terahertz ATR sensor for liquid measurements

AU - Zheng, Xiujun

AU - Gevart, Thomas

AU - Gallot, Guilhem

PY - 2021/8/15

Y1 - 2021/8/15

N2 - We describe a highly sensitive and stable quantum-cascade-laser-based attenuated total reflection (ATR) terahertz sensor for the detection of very low concentration solutions, using a dual-modulation differential approach and ATR geometry. This sensor offers a very high dynamic range and a long-term stability of 40 dB, which extends the potential of terahertz radiation for the analysis of liquid and biological samples. The performance is illustrated by measurements on standard solutions of ions, sugars, and proteins, for concentrations down to 1 µM.

AB - We describe a highly sensitive and stable quantum-cascade-laser-based attenuated total reflection (ATR) terahertz sensor for the detection of very low concentration solutions, using a dual-modulation differential approach and ATR geometry. This sensor offers a very high dynamic range and a long-term stability of 40 dB, which extends the potential of terahertz radiation for the analysis of liquid and biological samples. The performance is illustrated by measurements on standard solutions of ions, sugars, and proteins, for concentrations down to 1 µM.

U2 - 10.1364/OL.430324

DO - 10.1364/OL.430324

M3 - Article

C2 - 34388807

AN - SCOPUS:85112576308

SN - 0146-9592

VL - 46

SP - 4045

EP - 4048

JO - Optics Letters

JF - Optics Letters

IS - 16

ER -

High precision dual-modulation differential terahertz ATR sensor for liquid measurements

Abstract

Access to Document

Fingerprint

Cite this