Hot Molecular Oxygen (O2) - LIF:

Transition: Schumann-Runge bands: B3Su- - X3Sg- (0,9), (0,10), (0,11), (1,9), (1,10), (1,11), (2,10), (2,11), ... bands of hot molecular oxygen O2 (excitation wavelengths: see table below)

Appearance of the Schumann-Runge system: Degraded to the red

Excitation wavelength: 321,0 to 278,5 nm (UV) 

Flame/Burner: hydrogen/oxygen (H2/O) flame of a welding torch

Grating of the spectrograph: 1200 l/mm

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Table: Expected transitions/emissions (Herzberg, 1979)

Transitions of O2

Schumann-Runge bands

Excitation wavelength

 range [nm]

Emissions [nm] starting at:
B-X (0,12) band starting at 310,5 nm 310,5 nm deg. to the red 202,6 nm, 209,2 nm, 216,1 nm, 223,4 nm, 231,1 nm, 239,2 nm, 247,7 nm, 256,7 nm, 266,3 nm, 276,4 nm, 287,1 nm, 298,4 nm, 310,5 nm, 323,4 nm, 337,1 nm, 351,8 nm, ...
B-X (1,12) band starting at 304,0 nm 304,0 nm deg. to the red 199,8 nm, 206,2 nm, 213,0 nm, 220,0 nm, 227,5 nm, 235,3 nm, 243,6 nm, 252,3 nm, 261,5 nm, 271,2 nm, 281,5 nm, 292,4 nm, 304,0 nm, 316,4 nm, 329,5 nm, 343,5 nm, …
B-X (0,11) band starting at 298,4 nm 298,4 nm deg. to the red 202,6 nm, 209,2 nm, 216,1 nm, 223,4 nm, 231,1 nm, 239,2 nm, 247,7 nm, 256,7 nm, 266,3 nm, 276,4 nm, 287,1 nm, 298,4 nm, 310,5 nm, 323,4 nm, 337,1 nm, 351,8 nm, ...
B-X (2,12) band starting at 298,0 nm 298,0 nm deg. to the red 197,2 nm, 203,4 nm, 210,0 nm, 216,9 nm, 224,1 nm, 231,7 nm, 239,7 nm, 248,1 nm, 257,0 nm, 266,4 nm, 276,3 nm, 286,9 nm, 298,0 nm, 309,8 nm, 322,4 nm, 335,8 nm, …
B-X (3,12) band starting at 292,4 nm 292,4 nm deg. to the red 194,7 nm, 200,8 nm, 207,2 nm, 213,9 nm, 220,9 nm, 228,3 nm, 236,1 nm, 244,2 nm, 252,8 nm, 261,9 nm, 271,5 nm, 281,7 nm, 292,4 nm, 303,8 nm, 315,9 nm, 328,7 nm, …
B-X (1,11) band starting at 292,4 nm 292,4 nm deg. to the red 199,8 nm, 206,2 nm, 213,0 nm, 220,0 nm, 227,5 nm, 235,3 nm, 243,6 nm, 252,3 nm, 261,5 nm, 271,2 nm, 281,5 nm, 292,4 nm, 304,0 nm, 316,4 nm, 329,5 nm, 343,5 nm, …
B-X (0,10) band starting at 287,1 nm 287,1 nm deg. to the red 202,6 nm, 209,2 nm, 216,1 nm, 223,4 nm, 231,1 nm, 239,2 nm, 247,7 nm, 256,7 nm, 266,3 nm, 276,4 nm, 287,1 nm, 298,4 nm, 310,5 nm, 323,4 nm, 337,1 nm, 351,8 nm, ...
B-X (2,11) band starting at 286,9 nm 286,9 nm deg. to the red 197,2 nm, 203,4 nm, 210,0 nm, 216,9 nm, 224,1 nm, 231,7 nm, 239,7 nm, 248,1 nm, 257,0 nm, 266,4 nm, 276,3 nm, 286,9 nm, 298,0 nm, 309,8 nm, 322,4 nm, 335,8 nm, …
B-X (3,11) band starting at 281,7 nm 281,7 nm deg. to the red 194,7 nm, 200,8 nm, 207,2 nm, 213,9 nm, 220,9 nm, 228,3 nm, 236,1 nm, 244,2 nm, 252,8 nm, 261,9 nm, 271,5 nm, 281,7 nm, 292,4 nm, 303,8 nm, 315,9 nm, 328,7 nm, …
B-X (1,10) band starting at 281,5 nm 281,5 nm deg. to the red 199,8 nm, 206,2 nm, 213,0 nm, 220,0 nm, 227,5 nm, 235,3 nm, 243,6 nm, 252,3 nm, 261,5 nm, 271,2 nm, 281,5 nm, 292,4 nm, 304,0 nm, 316,4 nm, 329,5 nm, 343,5 nm, …
B-X (0,9) band starting at 276,4 nm 276,4 nm deg. to the red 202,6 nm, 209,2 nm, 216,1 nm, 223,4 nm, 231,1 nm, 239,2 nm, 247,7 nm, 256,7 nm, 266,3 nm, 276,4 nm, 287,1 nm, 298,4 nm, 310,5 nm, 323,4 nm, 337,1 nm, 351,8 nm, ...
B-X (2,10) band starting at 276,3 nm 276,3 nm deg. to the red 197,2 nm, 203,4 nm, 210,0 nm, 216,9 nm, 224,1 nm, 231,7 nm, 239,7 nm, 248,1 nm, 257,0 nm, 266,4 nm, 276,3 nm, 286,9 nm, 298,0 nm, 309,8 nm, 322,4 nm, 335,8 nm, …
B-X (3,10) band starting at 271,5 nm 271,5 nm deg. to the red 194,7 nm, 200,8 nm, 207,2 nm, 213,9 nm, 220,9 nm, 228,3 nm, 236,1 nm, 244,2 nm, 252,8 nm, 261,9 nm, 271,5 nm, 281,7 nm, 292,4 nm, 303,8 nm, 315,9 nm, 328,7 nm, …
B-X (1,9) band starting at 271,2 nm 271,2 nm deg. to the red 199,8 nm, 206,2 nm, 213,0 nm, 220,0 nm, 227,5 nm, 235,3 nm, 243,6 nm, 252,3 nm, 261,5 nm, 271,2 nm, 281,5 nm, 292,4 nm, 304,0 nm, 316,4 nm, 329,5 nm, 343,5 nm, …

Grating: 1200 lines/mm, UV and VIS excitation, Emissions: 260 to 295 nm, part 1

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  322,75 nm to 301,78 nm

   VIS: 645,50 nm to 603,56 nm

   (UV and VIS simultaneously)

Emission wavelength:

   260 nm to 295 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 312,22 nm

   VIS: 624,44 nm

   (UV and VIS simultaneously)

Detected signals:

   hot O2-LIF from Schumann-Runge bands: (weak)

(for more information see table on top of this page)

   OH-LIF A-X / from A-X (0,0) and (1,1) excitations:

(starting at: 302,2 nm (0,0) and 312,2 nm (1,1))

   OH-LIF A-X emissions:

(261 - 270 nm, 278 - 300 nm)

Download common measurement report for detailed informations about flame, laser beam position, pulse energy, ICCD gain, etc: 

Download MS Word file:

Download Davis file:

Download ASCII file:

CCD dynamic: 12 bit / ICCD gain: 9,9 / entrance slit: 80 mm / sum of pulses: 40 / 

UV pulse energy: not measured

   

Grating: 1200 lines/mm, UV and VIS excitation, Emissions: 295 to 330 nm, part 1

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  322,75 nm to 301,78 nm

   VIS: 645,50 nm to 603,56 nm

   (UV and VIS simultaneously)

Emission wavelength:

   295 nm to 330 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 311,62 nm

   VIS: 623, 24 nm

   (UV and VIS simultaneously)

Detected signals:

   Rayleigh scattering: UV

   hot O2-LIF from Schumann-Runge bands: (weak)

(for more information see table on top of this page)

   OH-LIF A-X / from A-X (0,0) and (1,1) excitations:

(starting at: 302,2 nm (0,0) and 312,2 nm (1,1))

   OH-LIF A-X emissions:

(302 - 330 nm)

Download common measurement report for detailed informations about flame, laser beam position, pulse energy, ICCD gain, etc: 

Download MS Word file:

Download Davis file:

Download ASCII file:

CCD dynamic: 12 bit / ICCD gain: 9,7 / entrance slit: 80 mm / sum of pulses: 10 / 

UV pulse energy: about ... to 1,2 mJ/pulse

   

Grating: 1200 lines/mm, UV and VIS excitation, Emissions: 330 to 365 nm, part 1

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  322,75 nm to 301,78 nm

   VIS: 645,50 nm to 603,56 nm

   (UV and VIS simultaneously)

Emission wavelength:

   330 nm to 365 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 306,19 nm

   VIS:612,38 nm

   (UV and VIS simultaneously)

Detected signals:

   hot O2-LIF from Schumann-Runge bands:

(for more information see table on top of this page)

   OH-LIF A-X / from A-X (0,0) and (1,1) excitations:

(starting at: 302,2 nm (0,0) and 312,2 nm (1,1))

   OH-LIF A-X emissions:

(302 - 330 nm, 342 - 355 nm)

Download common measurement report for detailed informations about flame, laser beam position, pulse energy, ICCD gain, etc: 

Download MS Word file:

Download Davis file:

Download ASCII file:

CCD dynamic: 12 bit / ICCD gain: 9,9 / entrance slit: 80 mm / sum of pulses: 40 / 

UV pulse energy: about 0,8 to 1,3 mJ/pulse

 

Grating: 1200 lines/mm, UV and VIS excitation, Emissions: 260 to 295 nm, part 2

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  295,00 nm to 278,00 nm

   VIS: 590,00 nm to 556,00 nm

   (UV and VIS simultaneously)

Emission wavelength:

   260 nm to 295 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 287,32 nm

   VIS: 574,64 nm

   (UV and VIS simultaneously)

Detected signals:

   Rayleigh scattering: UV

   hot O2-LIF from Schumann-Runge bands:

(for more information see table on top of this page)

   OH-LIF A-X / from A-X (1,0) and (2,1) excitations:

(starting at: 278,5 nm (1,0) and 287,4 nm (2,1))

   OH-LIF A-X emissions:

(261 - 270 nm, 278 - 300 nm)

Download common measurement report for detailed informations about flame, laser beam position, pulse energy, ICCD gain, etc: 

Download MS Word file:

Download Davis file:

Download ASCII file:

CCD dynamic: 12 bit / ICCD gain: 9,7 / entrance slit: 80 mm / sum of pulses: 20 / 

UV pulse energy: about 2,20 to 2,65 mJ/pulse

   

Grating: 1200 lines/mm, UV and VIS excitation, Emissions: 295 to 330 nm, part 2

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  295,00 nm to 278,00 nm

   VIS: 590,00 nm to 556,00 nm

   (UV and VIS simultaneously)

Emission wavelength:

   295 nm to 330 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 286,39 nm

   VIS: 572,78 nm

   (UV and VIS simultaneously)

Detected signals:

   Rayleigh scattering: UV (top left)

   hot O2-LIF from Schumann-Runge bands:

(for more information see table on top of this page)

   OH-LIF A-X / from A-X (1,0) and (2,1) excitations:

(starting at: 278,5 nm (1,0) and 287,4 nm (2,1))

   OH-LIF A-X emissions:

(278 - 300 nm, 302 - 333 nm)

Download common measurement report for detailed informations about flame, laser beam position, pulse energy, ICCD gain, etc: 

Download MS Word file:

Download Davis file:

Download ASCII file:

CCD dynamic: 12 bit / ICCD gain: 9,7 / entrance slit: 80 mm / sum of pulses: 20 / 

UV pulse energy: about 2,00 to ... mJ/pulse

   

Grating: 1200 lines/mm, UV and VIS excitation, Emissions: 330 to 365 nm, part 2

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  295,00 nm to 278,00 nm

   VIS: 590,00 nm to 556,00 nm

   (UV and VIS simultaneously)

Emission wavelength:

   330 nm to 365 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 282,16 nm

   VIS: 564,32 nm

   (UV and VIS simultaneously)

Detected signals:

   hot O2-LIF from Schumann-Runge bands:

(for more information see table on top of this page)

   OH-LIF A-X / from A-X (1,0) and (2,1) excitations:

(starting at: 278,5 nm (1,0) and 287,4 nm (2,1))

   OH-LIF A-X emissions:

(302 - 333 nm, 342 - 359 nm)

Download common measurement report for detailed informations about flame, laser beam position, pulse energy, ICCD gain, etc: 

Download MS Word file:

Download Davis file:

Download ASCII file:

CCD dynamic: 12 bit / ICCD gain: 9,9 / entrance slit: 80 mm / sum of pulses: 50 / 

UV pulse energy: about 2,00 to 3,10 mJ/pulse

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