High-Temperature Spectral Database


Our laboratory specializes in measuring absorption cross-sections and spectral parameters at high temperatures. We use narrow line-width tunable lasers and high-resolution Fourier Transform Infrared (FTIR) Spectrometer and different lasers (QCL, DFG lasers ...). Measurements are carried out over a range of temperatures and pressures.

Absorption cross-section measurements :

Year Paper MoleculeTemperature range:Frequency range: (cm-1)Technique Measured Data
2013Temperature-dependent absorption cross-section measurements
of 1-butene (1-C4H8) in VUV and IR

1-butene (1-C4H8)

296-529 K
  • 48780.49-66666.67

  • 400-6500

  • Synchrotron radiation (a tunable VUV light source)

  • FTIR

2014Absorption cross-section measurements of methane, ethane, ethylene and methanol at high temperatures
  • Methane (CH4)

  • Ethylene (C2H4)

  • Ethane (C2H6)

  • Methanol (CH3OH)
296-1100 K2800-3400FTIR
2014Infrared cross-sections and integrated band intensities of propylene: Temperature-dependent studies

Propylene (C3H6)

296-460 K400-6500FTIRCross sections of Propylene
2014Quantitative mid-infrared spectra of allene and propyne from room to high temperatures
  • Allene (CH2CCH2)

  • Propyne (C3H4)

296 K-510 K580-3400FTIR
2015High-temperature measurements of methane and acetylene using quantum cascade laser absorption near 8 μm
  • Methane (CH4)

  • Acetylene (C2H2)

1200–2200 K1217–1328 CW EC QCL | Shock tube
  • Cross sections of Methane

  • Cross sections of Acetylene
2021A laser diagnostic for HCN detection in mid-infraredHydrogen cyanide (HCN)1000-3000 K711-716Comb-referenced widely tunable nonlinear laser source | Shock tubeCross sections of Hydrogen Cyanide
2022High-temperature mid-IR absorption spectra and reaction kinetics of 1,3-dioxolane1,3-dioxolane (C3H6O2)296-852 K900-1200EC QCL (MIRcat) Cross sections of 1,3 dioxolane
2023High-temperature mid-IR absorption and reaction kinetics of 2-methyl-1,3-dioxolane: An experimental and theoretical study2-methyl-1,3-dioxolane (C4H8O2)1050–1400 K950–1190 EC QCL (MIRcat) | Shock tubeCross sections of 2-methyl-1,3-dioxolane
2023Mid-IR Absorption Spectra of C1-C4 Alkyl Acetates at High Temperatures
  • Methyl acetate 

  • Ethyl acetate

  • n-propyl acetate

  • n-butyl acetate (C6H12O2)
580 – 980 K1160 – 1330EC QCL (MIRcat) | Shock tube
  • Cross sections of methyl acetate

  • Cross sections of ethyl acetate

  • Cross sections of n-propyl acetate

  • Cross sections of n-butyl acetate


Spectral Parameters:


Year Paper MoleculeTemperature range:Frequency range: (cm-1)Technique Measured Data
2013Measurements of NH3 linestrengths and collisional broadening coefficients in N2, O2, CO2, and H2O near 1103.46 cm−1
  • Ammonia (NH3) in N2

  • Ammonia (NH3) in O2

  • Ammonia (NH3) in CO2

  • Ammonia (NH3) in H2O
296 K1100.4–1108.2 Tunable QCL Linestrength and collisional
broadening coefficients  narrowing
2014Measurements of linestrengths, N2-, Ar-, He- and self-broadening coefficients of acetylene in the ν4+ν5 combination band using a cw quantum cascade laser
  • Acetylene (C2H2) in N2 

  • Acetylene (C2H2) in He

  • Acetylene (C2H2) in Ar
296–683 K 1253-1310CW QCL Linestrength and collisional
broadening narrowing coefficients  
2014Intensities, broadening and narrowing parameters in the ν3 band of methaneMethane (CH4)296 K2905-2908Tunable DFG Laser  system Intensities and collisional
broadening coefficients  narrowing
2016Quantum Cascade Laser Measurements of Line Intensities, N2-, O2- and Ar- Collisional Broadening Coefficients of N2O in the ν3 Band Near 4.5 µm
  • Nitrous Oxide (N2O) in N2

  • Nitrous Oxide (N2O) in O2

  • Nitrous Oxide (N2O) in Ar
296 K2190-2202QCL Intensities and Nitrous Oxide Collisional Broadening Coefficients
2016First line shape analysis and spectroscopic parameters for the ν11 band of 12C2H4Ethylene (12th C2H4)296 K2975–2980DFG Laser  system The ν11 band (line intensities, collisional broadening coefficients and narrowing parameters)
2018High accuracy line positions of the ν1 fundamental band of 14N216ONitrous Oxide (14th N2, 16th O)296 K1240-1310EC-QCL t NIR Tm:based frequency comb Line Strength of the ν1 band of N2O, from P(40) to R(31),
2021Line-strengths, collisional coefficients and narrowing parameters in the ν3 band of methane: H2, He, N2, O2, Ar and CO2 collider effectsMethane (12th CH4)296K2884-2969DFG LaserLine-strengths, collisional coefficients and narrowing parameters in the ν3 band of methane