Hydroxyl Radical (OH) - LIF:

Transition: A2S+ - X2P (2,0) and (3,1) bands of OH

Appearance of the OH A-X system: Degraded to the red

Excitation wavelength: 278,5 to 259,0 nm

Flame/Burner: hydrogen/oxygen (H2/O2) flame of a welding torch

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Grating: 100 lines/mm, UV and VIS excitation, Emissions: 190 to 605 nm, part 1

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  278,35 nm to 274,00 nm

   VIS: 556,70 nm to 548,00 nm

   (UV and VIS simultaneously)

Emission wavelength:

   190 nm to 605 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 274,33 nm

   VIS: 548,66 nm

   (UV and VIS simultaneously)

Detected signals:

   Rayleigh scattering: UV and VIS

   OH-LIF A-X / from A-X (2,0) and (3,1) excitations:

(starting at: 259,2 nm (2,0))

   OH-LIF A-X emissions:

(278 - 302 nm, 302 - 335 nm)

   hot O2-LIF (see also chapter O2)

   Rayleigh and OH-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:

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

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

   

Grating: 100 lines/mm, UV and VIS excitation, Emissions: 190 to 605 nm, part 2

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  274,50 nm to 256,00 nm

   VIS: 549,00 nm to 512,00 nm

   (UV and VIS simultaneously)

Emission wavelength:

   190 nm to 605 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 260,70 nm

   VIS: 521,40 nm

   (UV and VIS simultaneously)

Detected signals:

   Rayleigh scattering: UV and VIS

   OH-LIF A-X / from A-X (2,0) and (3,1) excitations:

(starting at: 259,2 nm (2,0) and 267,5 nm (3,1))

   OH-LIF A-X emissions:

(259 - 275 nm, 278 - 302 nm, 302 - 335 nm, 340 - 360 nm, 405 nm)

   NO-LIF A-X / from A-X (0,3) excitation:

(starting at 259,5 nm (0,3))

   NO-LIF A-X emissions:

(272 nm, 260 nm, 248 nm, 237 nm, 227 nm)

   hot O2-LIF (see also chapter O2)

   Rayleigh, O2-LIF, NO-LIF and OH-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:

CCD dynamic: 12 bit / ICCD gain: 8,6 / entrance slit: 80 mm / sum of pulses: 50 / 

UV pulse energy: about 3,1 to 3,5 mJ/pulse

   

Grating: 100 lines/mm, UV and VIS excitation, Emissions: 180 to 600 nm, laser wavelength step size: 0,01 nm

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  272,70 nm to 259,00 nm

   VIS: 545,40 nm to 518,00 nm

   (UV and VIS simultaneously)

Emission wavelength:

   180 nm to 600 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 261,13 nm

   VIS: 522,26 nm

   (UV and VIS simultaneously)

Detected signals:

   Rayleigh scattering: UV and VIS

   OH-LIF A-X / from A-X (2,0) and (3,1) excitations:

(starting at: 259,2 nm (2,0) and 267,5 nm (3,1))

   OH-LIF A-X emissions:

(259 - 275 nm, 278 - 302 nm, 302 - 335 nm, 340 - 360 nm, 405 nm)

   hot O2-LIF (see also chapter O2)

   Rayleigh, O2-LIF and OH-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:

CCD dynamic: 12 bit / ICCD gain: 7,5 / entrance slit: 50 mm / sum of pulses: 60 / 

UV pulse energy: not measured

   

Grating: 1200 lines/mm, UV and VIS excitation, Emissions: 230 to 265 nm

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  273,50 nm to 256,00 nm

   VIS: 547,00 nm to 512,00 nm

   (UV and VIS simultaneously)

Emission wavelength:

   230 nm to 265 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 261,35 nm

   VIS: 522,70 nm

   (UV and VIS simultaneously)

Detected signals:

   Rayleigh scattering: UV

   OH-LIF A-X / from A-X (2,0) and (3,1) excitations:

(starting at: 259,2 nm (2,0) and 267,5 nm (3,1))

   OH-LIF A-X emissions:

(259 - 275 nm)

   NO-LIF A-X / from A-X (0,3) excitation:

(starting at 259,5 nm (0,3))

   NO-LIF A-X emissions from (0,3):

(260 nm, 248 nm, 237 nm)

   NO-LIF A-X / from A-X (0,4) excitation:

(starting at 272,0 nm (0,4))

   NO-LIF A-X emissions:

(260 nm (weak), 248 nm, 237 nm)

   hot O2-LIF (see also chapter O2)

   spectrograph error at about 272 nm ex. wavelength

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: not measured

   

Grating: 1200 lines/mm, UV and VIS excitation, Emissions: 265 to 300 nm

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  273,50 nm to 256,00 nm

   VIS: 547,00 nm to 512,00 nm

   (UV and VIS simultaneously)

Emission wavelength:

   265 nm to 300 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 266,30 nm

   VIS: 532,60 nm

   (UV and VIS simultaneously)

Detected signals:

   Rayleigh scattering: UV

   OH-LIF A-X / from A-X (2,0) and (3,1) excitations:

(starting at: 259,2 nm (2,0) and 267,5 nm (3,1))

   OH-LIF A-X emissions:

(259 - 275 nm, 278 - 302 nm)

   NO-LIF A-X / from A-X (0,3) excitation:

(starting at 259,5 nm (0,3))

   NO-LIF A-X emissions from (0,3):

(286 nm, 272 nm)

   hot O2-LIF (see also chapter O2)

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 2,5 to 3,0 mJ/pulse

   

Grating: 1200 lines/mm, UV and VIS excitation, Emissions: 300 to 335 nm

EES, point of measurement:

   center (center of the flame)

Excitation wavelength:

   UV:  273,50 nm to 256,00 nm

   VIS: 547,00 nm to 512,00 nm

   (UV and VIS simultaneously)

Emission wavelength:

   300 nm to 335 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 261,23 nm

   VIS: 522,46 nm

   (UV and VIS simultaneously)

Detected signals:

   OH-LIF A-X / from A-X (2,0) and (3,1) excitations:

(starting at: 259,2 nm (2,0) and 267,5 nm (3,1))

   OH-LIF A-X emissions:

(278 - 302 nm, 302 - 335 nm)

   hot O2-LIF (see also chapter O2)

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:not measured

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