[1]Li C, Dong L, Zheng C, et al.Compact TDLAS based optical sensor for ppb-level ethane detection by use of a 3.34 μm room-temperature CW interband cascade laser [J]. [J].Sensors and Actuators B: Chemical, 2016, 232:188-194[2]Cui R, Dong L, Wu H, et al.Highly sensitive and selective CO sensor using a 233 mum diode laser and wavelength modulation spectroscopy[J].Optics Express, 2018, 26(19):24318-24328[3]Cui R, Dong L, Wu H, et al.Calculation model of dense spot pattern multi-pass cells based on a spherical mirror aberration[J].Optics Letters, 2019, 44(5):1108-1111[4]Hovde D C, Hodges J T, Scace G E, et al.Wavelength-modulation laser hygrometer for ultrasensitive detection of water vapor in semiconductor gases[J].Applied Optics, 2001, 40(6):829-839[5]Somesfalean G, Alnis J, Gustafsson U, et al.Long-path monitoring of NO2 with a 635 nm diode laser using frequency-modulation spectroscopy[J].Applied Optics, 2005, 44(24):5148-5151[6]Thoma M L, Kaschow R, Hindelang F J.A multiple-reflection cell suited for absorption measurements in shock tubes[J].Shock Waves, 1994, 4(1):51-53[7]Chernin S, Barskaya E J A o.Optical multipass matrix systems[J].Applied Optics, 1991, 30(1):51-58[8]Guo Y, Sun L, Yang Z, et al.Generalized design of a zero-geometric-loss,astigmatism-free,modified four-objective multipass matrix system[J].Applied Optics, 2016, 55(6):1435-1443[9]Robert C J A O.Simple,stable,and compact multiple-reflection optical cell for very long optical paths[J].Applied Optics, 2007, 46(22):5408-5418[10]Dong L, Li C G, Sanchez N P, et al.Compact CH4 sensor system based on a continuous-wave,low power consumption,room temperature interband cascade laser[J].Applied Physics Letters, 2016, 108(1):011106-[11]Cai X L, Zhou C H, Zhou D J, et al.H-2 Stimulated Raman Scattering in a Multi-pass Cell with a Herriott Configuration[J].Chinese Physics Letters, 2015, 32(11):114207-[12]Chibirev I, Mazzoleni C, van der Voort D D, et al.Raman spectrometer for field determination of H2O in natural gas pipelines[J].Journal of Natural Gas Science and Engineering, 2018, 55:426-430[13]Wei T, Wu H, Dong L, et al.Palm-sized methane TDLAS sensor based on a mini-multi-pass cell and a quartz tuning fork as a thermal detector[J].Optics Express, 2021, 29(8):12357-12364[14]Cui R, Wu H, Dong L, et al.Multiple-sound-source-excitation quartz-enhanced photoacoustic spectroscopy based on a single-line spot pattern multi-pass cell[J].Applied Physics Letters, 2021, 118(16):161101-[15]Sun H, Ma Y, He Y, et al.Highly sensitive acetylene detection based on a compact multi-pass gas cell and optimized wavelength modulation technique[J].Infrared Physics & Technology, 2019, 102:03012.-[16]Claps R, Englich F V, Leleux D P, et al.Ammonia Detection by use of Near-Infrared Diode-Laser-Based Overtone Spectroscopy[J].Applied Optics, 2001, 40(24):4387-4394[17]Ren W, Luo L, Tittel F K.Sensitive detection of formaldehyde using an interband cascade laser near 3.6 μm [J].Sensors and Actuators B: Chemical, 2015, 221:1062-1068[18]Ghorbani R, Schmidt F M.Real-time breath gas analysis of CO and CO2 using an EC-QCL[J].Applied Physics B, 2017, 123(5):144-[19]Guo X, Zheng F, Li C, et al.A portable sensor for in-situ measurement of ammonia based on near-infrared laser absorption spectroscopy[J].Optics and Lasers in Engineering, 2019, 115:243-248[20]Fang B, Yang N, Zhao W, et al.Improved spherical mirror multipass-cell-based interband cascade laser spectrometer for detecting ambient formaldehyde at parts per trillion by volume levels[J].Applied Optics, 2019, 58(32):8743-8750[21]Jeffers J D, Roller C B, Namjou K, et al.Real-time diode laser measurements of vapor-phase benzene[J].Analytical Chemistry, 2004, 76(2):424-432[22]Rocco A, De Natale G, De Natale P, et al.A diode-laser-based spectrometer for in-situ measurements of volcanic gases[J].Applied Physics B, 2004, 78(2):235-240[23]Dang J, Yu H, Sun Y, et al.A CO trace gas detection system based on continuous wave DFB-QCL[J].Infrared Physics & Technology, 2017, 82:183-191[24]Ghorbani R, Schmidt F M.ICL-based TDLAS sensor for real-time breath gas analysis of carbon monoxide isotopes[J].Optics Express, 2017, 25(11):12743-12752[25]Tanaka K, Miyamura K, Akishima K, et al.Sensitive measurements of trace gas of formaldehyde using a mid-infrared laser spectrometer with a compact multi-pass cell[J].Infrared Physics & Technology, 2016, 79:1-5[26]Liu J, Dong Y, Gu M S, er al.Development of inhaled portable methane detector based on TDLAS technique[J].量子电子学报, 2019, 36(05):521-527[27]Jane H, Tatam R P.Optical gas sensing: a review [J]. Measurement Science and Technology , 2012, 24(1):012004-[28]Herriott D, Kogelnik H, Kompfner R.Off-axis paths in spherical mirror interferometers[J].Applied Optics, 1964, 3(4):523-526[29]Cui R, Dong L, Wu H, et al.Generalized optical design of two-spherical-mirror multi-pass cells with dense multi-circle spot patterns[J].Applied Physics Letters, 2020, 116(9):091103-[30]Cui R, Dong L, Wu H, et al.Three-Dimensional Printed Miniature Fiber-Coupled Multipass Cells with Dense Spot Patterns for ppb-Level Methane Detection Using a Near-IR Diode Laser[J].Analytical Chemistry, 2020, 92(19):13034-13041[31]Gurlit W, Zimmermann R, Giesemann C, et al.Lightweight diode laser spectrometer CHILD (Compact High-altitude iN-situ Laser Diode) for balloonborne measurements of water vapor and methane[J].Applied Optics, 2005, 44(1):91-102[32]Richard E C, Kelly K K, Winkler R H, et al.A fast-response near-infrared tunable diode laser absorption spectrometer for in situ measurements of CH 4 in the upper troposphere and lower stratosphere[J].Applied Physics B: Lasers and Optics, 2002, 75(2-3):183-194[33]Sonnenfroh D M, Wainner R T, Allen M G, et al.Interband cascade laser-based sensor for ambient CH 4[J].Optical Engineering, 2010, 49(11):111118-[34]McManus J B, Shorter J H, Nelson D D, et al.Pulsed quantum cascade laser instrument with compact design for rapid,high sensitivity measurements of trace gases in air[J].Applied Physics B, 2008, 92(3):387-392[35]Liu K, Wang L, Tan T, et al.Highly sensitive detection of methane by near-infrared laser absorption spectroscopy using a compact dense-pattern multipass cell [J].[J].Sensors and Actuators B: Chemical, 2015, 220:1000-1005[36]Bamberger I, Stieger J, Buchmann N, et al.Spatial variability of methane: attributing atmospheric concentrations to emissions[J].Environmental Pollution, 2014, 190:65-74 |