Excitation Emission Spectra for hot oxygen O2 in a H2/O2 flame

Transition: Schumann-Runge bands: B³S_u^- - X³S_g^- (0,3), (0,4), (1,4), (1,5), (2,4), (2,5), ... bands of hot molecular oxygen O₂ (excitation wavelengths: see table below)

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Grating: 100 lines/mm, UV and VIS excitation, Emissions: 180 to 570 nm, CCD dynamic: 16 bit

EES, point of measurement:

off-center (outer range of the flame)

Excitation wavelength:

UV: 238,50 nm to 227,00 nm

VIS: 477,00 nm to 454,00 nm

(UV and VIS simultaneously)

Emission wavelength:

180 nm to 570 nm

EES, point of measurement:

center (inner range of the flame)

Excitation wavelength:

UV: 238,50 nm to 227,00 nm

VIS: 477,00 nm to 454,00 nm

(UV and VIS simultaneously)

Emission wavelength:

180 nm to 570 nm

Single Image:

local distribution of signals inside the flame

Excitation wavelength:

UV: 236,00 nm

VIS: 472,00 nm

(UV and VIS simultaneously)

Detected signals:

Rayleigh scattering: UV and VIS

hot O2-LIF from Schumann-Runge bands:

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

NO-LIF A-X / from A-X (0,1) and (2,3) excitations:

(starting at 236,9 nm (0,1) and 231,5 nm (2,3))

NO-LIF A-X emissions:

(376 nm, 355 nm, 335 nm, 317 nm, 301 nm, 286 nm, 272 nm, 260 nm, 248 nm, 237 nm, 227 nm, 215 nm, 205 nm)

OH self emission (at about 310 nm)

Rayleigh and NO-LIF in 2nd order

Detected signals:

Rayleigh scattering: UV and VIS

hot O2-LIF from Schumann-Runge bands:

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

NO-LIF A-X / from A-X (0,1) and (2,3) excitations:

(starting at 236,9 nm (0,1) and 231,5 nm (2,3))

NO-LIF A-X emissions:

(376 nm, 355 nm, 335 nm, 317 nm, 301 nm, 286 nm, 272 nm, 260 nm, 248 nm, 237 nm, 227 nm, 215 nm, 205 nm)

OH self emission (at about 310 nm)

Rayleigh and NO-LIF in 2nd order

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

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Download Davis file:

Download ASCII file:

Download Davis file:

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CCD dynamic: 16 bit / ICCD gain: 8,0 / entrance slit: 80 mm / sum of pulses: 80 /

UV pulse energy: about 4,5 to 3,6 mJ/pulse

Grating: 100 lines/mm, only UV excitation, Emissions: 180 to 605 nm, O2/H2 ratio > 1

EES, point of measurement:

off-center (outer range of the flame)

Excitation wavelength:

UV: 238,50 nm to 227,00 nm

VIS: no VIS excitation

Emission wavelength:

180 nm to 605 nm

EES, point of measurement:

center (inner range of the flame)

Excitation wavelength:

UV: 238,50 nm to 227,00 nm

VIS: no VIS excitation

Emission wavelength:

180 nm to 605 nm

Single Image:

local distribution of signals inside the flame

Excitation wavelength:

UV: 236,24 nm

VIS: no VIS excitation

Detected signals:

Rayleigh scattering: UV

hot O2-LIF from Schumann-Runge bands:

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

NO-LIF A-X / from A-X (0,1) excitation:

(starting at 236,9 nm (0,1))

NO-LIF A-X emissions:

(weak)

Rayleigh, hot O2-LIF and NO-LIF in 2nd order

Detected signals:

Rayleigh scattering: UV

hot O2-LIF from Schumann-Runge bands:

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

NO-LIF A-X (weak)

OH self emission (at about 310 nm)

Rayleigh, hot O2-LIF and NO-LIF in 2nd order

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:

Download Davis file:

Download ASCII file:

CCD dynamic: 12 bit / ICCD gain: 9,6 / entrance slit: 100 mm / sum of pulses: 50 /

UV pulse energy: about 5,0 to 4,4 mJ/pulse

Transitions of O2 Schumann-Runge bands	Excitation wavelength range [nm]	Emissions [nm] starting at:
B-X (3,6) band starting at 236,1 nm	236,1 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 (1,5) band starting at 235,3 nm	235,3 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 (2,5) band starting at 231,7 nm	231,7 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 (0,4) band starting at 231,1 nm	231,1 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 (3,5) band starting at 228,3 nm	228,3 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 (1,4) band starting at 227,5 nm	227,5 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 (2,4) band starting at 224,1 nm	224,1 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 (0,3) band starting at 223,4 nm	223,4 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, ...