HONO and N<sub>2</sub>O<sub>4</sub> Measurement Method Based on Mid-Infrared Quantum Cascade Laser Spectroscopy

Yafan Li; Chaochao Jiang; Xiaohan Cui; Benli Yu; Xiaojuan Cui

doi:10.3788/AOS221988

Acta Optica Sinica, Volume. 43, Issue 11, 1130001(2023)

HONO and N₂O₄ Measurement Method Based on Mid-Infrared Quantum Cascade Laser Spectroscopy

Yafan Li¹, Chaochao Jiang¹, Xiaohan Cui¹, Benli Yu^1,2, and Xiaojuan Cui^1,2、*

¹Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, Anhui, China

²Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education, Anhui University, Hefei 230601, Anhui, China

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Figures & Tables(9)

Fig. 1. Schematic diagram of experimental setup

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Fig. 2. HONO spectrum in wave band from 1270 cm^-1 to 1285 cm^-1[25]

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Fig. 3. N₂O₄ spectrum in wave band from 2 μm to 17 μm^[26]

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Fig. 4. Experimental spectrum for 1279.5-1282.5 cm^-1

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Fig. 5. Simulated absorption spectra of NO₂, HNO₃, H₂O and CO₂under experimental conditions

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Fig. 6. Spectrum of gas sample just entered absorption cell

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Fig. 7. HONO absorption intensity varying with time

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Fig. 8. Voigt fitting of HONO absorption line at frequency of 1280.4 cm^-1

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Table 1. Absorption line frequencies of trans-HONO and N₂O₄ at 1279.5-1282.5 cm^-1

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Table 1. Absorption line frequencies of trans-HONO and N₂O₄ at 1279.5-1282.5 cm^-1

Type

Wave number /cm^-1

Trans-HONO

1279.8533，1279.9920，1280.0927，1280.1377，1280.1516，1280.2175，1280.2488，1280.2730，1280.2835，1280.3043，1280.3841，1280.4188，1280.4326，1280.5471，1280.5853，1280.6199，1280.7102，1280.7691，1280.7969，1280.8246，1280.8697，1280.8801，1280.9009，1280.9218，1281.0119，1281.0848，1281.1264，1281.3277，1281.3658，1281.4213，1281.6364，1281.7023，1281.7370，1281.7613，1281.9001，1281.9729，1281.0250，1282.0770

N₂O₄

1280.3459，1280.6651，1281.2201，1281.6017

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Yafan Li, Chaochao Jiang, Xiaohan Cui, Benli Yu, Xiaojuan Cui. HONO and N₂O₄ Measurement Method Based on Mid-Infrared Quantum Cascade Laser Spectroscopy[J]. Acta Optica Sinica, 2023, 43(11): 1130001

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Paper Information

Category: Spectroscopy

Received: Nov. 15, 2022

Accepted: Feb. 9, 2023

Published Online: Jun. 13, 2023

The Author Email: Xiaojuan Cui (xjcui@ahu.edu.cn)

DOI:10.3788/AOS221988

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Absorption line frequencies of trans-HONO and N2O4 at 1279.5-1282.5 cm-1

Table 1. Absorption line frequencies of trans-HONO and N2O4 at 1279.5-1282.5 cm-1

Table 1. Absorption line frequencies of trans-HONO and N₂O₄ at 1279.5-1282.5 cm^-1

Table 1. Absorption line frequencies of trans-HONO and N₂O₄ at 1279.5-1282.5 cm^-1