1. Combining HITRAN line-by-line, UV cross section and PNNL databases for Modeling of LIBS and Raman LIDAR
Denis Plutov, Dennis K. Killinger
Laboratory for Laser Remote Sensing
Department of Physics
University of South Florida
Tampa, FL

2. Outline Improved Hitran-PC (4.0) Combined spectra
HITRAN Line-by-line
UV Cross Sections (HITRAN)
PNNL (Pacific Northwest National Lab) IR Database
Spectra for modeling LIBS and Raman LIDAR
Summary

3. New capabilities of Hitran-PC 4.0
HITRAN 2004 database usage
Addition of aerosols (BACKSCAT 4.0 model)
Addition of HITRAN cross sections into calculations
Introduction of PNNL IR database into calculations
Ability to carry out calculations for individual isotopes
New operational features

4. Hitran-PC line-by-line calculation overview

5. Additional spectral features

6. Hitran-PC Interface Overview
New “Info Panel”

7. 5 Tabs of the “Info Panel”
Calculation
parameters
HITRAN line-by-line
PNNL IR
HITRAN Cross Sections
Manual input spectra

8. Displayed spectrum: Zoom-in / Zoom-out
Magnification of a selected region –
Spectra stored in RAM after the calculation
Ability to zoom out

9. Slant Path Layer Editor
Geometry of the slant path
Slant path layer list

10. Slant path calculation

11. Adding PNNL and UV cross sections to HITRAN line-by-line (Path 1000 m)
NO2 (Cross sections)
Trimethylamine (PNNL)
Ozone (Cross sections)
0.245
4.00
Wavelength, micrometers
Combined line-by-line, PNNL IR and Cross Sectional spectra obtained with the Hitran-PC (4.0) program.
(Path: 1000 m. Total pressure: 1 Atm.)
Cross sections: NO2 (2.13∙10-2 ppm) , NO3 (5∙10-5) ppm, O3 (0.15 ppm).
PNNL: Trimethylamine (0.5 ppm).

12. Example: comparison of HITRAN line-by-line, cross sectional and PNNL spectra: SF6
100
HITRAN
line-by-line
Cross
section
PNNL IR
Path length: 1000 m
Temperature: 296 K
SF6, 1∙10-7 Atm partial pressure
925.00
955.00
Wavenumber, cm-1
HITRAN Line-by-line spectrum of SF6 (No hot bands)
HITRAN Cross sectional spectrum of SF6
PNNL IR spectrum of SF6

13. Example: comparison of HITRAN line-by-line and PNNL spectra: CH4
4.54
Obtained with Hitran-PC 4.0 for 296K and 1000m path
Methane (CH4), 5∙10-7 Atm partial pressure
PNNL IR
2.3
2.35
Wavelength, micrometers
HITRAN line-by-line
HITRAN line-by-line spectrum of Methane (CH4)
PNNL IR database spectrum of Methane (CH4)

14. Initial Use of HITRAN / PNNL / Cross_Sections for LIBS / Raman Lidar Calculations

15. Combined transmission spectrum of the atmosphere in the UV-VIS region obtained with Hitran-PC 4.0
100
0.245
0.8
Wavelength, micrometers
Transmission spectrum of the atmosphere generated with Hitran-PC (4.0) for a
(1000 m path and a total pressure of 1 Atm.)
Line-by-line (ppmv): H2O (7.75∙103), O2 (2.66∙10-2).
Cross sections (ppmv): NO2 (2.13∙10-2), NO3 (5∙10-5), O3 (0.15).

16. Combining the atmospheric transmission spectrum with the LIDAR equation

17. Calculated Raman Lidar S/N versus range for Naphtalene spectrum
Pt = 25 MW (10-10 Raman efficiency), telescope area A = 0.01 m2

18. Summary Added PNNL and Cross-section to line-by-line
Initial application to LIBS and Raman LIDAR spectral signatures
Future: LIBS and Raman LIDAR and spectral component analysis vs. Range