CN-Radical (CN) - LIF:

Transition: B2S+ - X2S+ (0,2) band of CN

Appearance of the CN B-X bands: Degraded to the violet

Excitation wavelength: 460,6 to about 447,0 nm

Flame/Burner: acetylene/oxygen (C2H2/O2) flame of a welding torch

Comment:  Click on picture to enlarge it. Open files with left mouse button. Download files with right mouse button.

Grating: 100 lines/mm, only VIS excitation, Emissions: 290 to 710 nm

EES, point of measurement:

   center (inner cone of the flame)

Excitation wavelength:

   UV:  no UV excitation

   VIS: 478,00 nm to 440,00 nm

Emission wavelength:

   290 nm to 710 nm

EES, point of measurement:

    off-center  (outer range of the flame)

Excitation wavelength:

   UV: no UV excitation

   VIS: 478,00 nm to 440,00 nm

Emission wavelength:

   290 nm to 710 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: no UV excitation

   VIS: 460,52 nm

Detected signals:

   Rayleigh scattering: VIS

   CN-LIF B-X / from B-X (0,2) and (1,3) excitation:

      (starting at 460,6 nm (0,2) and  457,6 nm (1,3))

   CN-LIF / B-X emissions:

      (389 nm, 421 nm)

   C2-LIF d-a / from d-a (1,0), (2,1), (3,2) ... excitations:

      (Swan bands, starting at 474,0 nm)

   C2-LIF / Swan band emissions:

      (438 nm, 473 nm, 516 nm, 563 nm, 619 nm, 685 nm)

    C2-LIF C-A / from C-A (0,3), (1,4) ... excitations:

      (Deslandres-d'Azambuja bands, starting at 469,7 nm)

   C2-LIF / Deslandres d'Azambuja band emissions:

      (360 nm, 385 nm, 410 nm, 438 nm)

   broadband fluorescence of hydrocarbon species:

      (about 300 nm to 450 nm)

Detected signals:

   Rayleigh scattering: VIS

   C2-LIF d-a

   broadband fluorescence of hydrocarbon species:

      (about 300 nm to 450 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:

Download Davis file:

Download ASCII file:

CCD dynamic: 12 bit / ICCD gain: 7,5 / entrance slit: 50 mm / sum of pulses: 30 /

VIS pulse energy: about 27,3 to 26,8 mJ/pulse

   

Grating: 100 lines/mm, UV and VIS excitation, Emissions: 200 to 620 nm, part 1

EES, point of measurement:

   center (inner cone 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:

   200 nm to 620 nm

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:

   200 nm to 620 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: 230,20 nm

   VIS: 460,40 nm

   (UV and VIS simultaneously)

Detected signals:

   Rayleigh scattering: UV (+2nd order) and VIS

   CN-LIF B-X / from B-X (0,2) and (1,3) excitation:

      (starting at 460,6 nm (0,2) and  457,6 nm (1,3))

   CN-LIF / B-X emissions:

      (389 nm, 421 nm)

   C2-LIF d-a / from d-a (1,0), (2,1), (3,2) ... excitations:

      (Swan bands, starting at 474,0 nm)

   C2-LIF / Swan band emissions:

      (438 nm, 473 nm, 516 nm, 563 nm, 619 nm)

   C2-LIF C-A / from C-A (0,3), (1,4) ... excitations:

      (Deslandres-d'Azambuja bands, starting at 469,7 nm)

   C2-LIF / Deslandres d'Azambuja band emissions:

      (339 nm, 360nm, 385 nm, 410 nm, 438 nm)

   C2-LIF D-X / from D-X (0,0), (1,1) ... excitations:

      (Mullikan bands, starting at about 233 nm)

   C2-LIF / Mullikan band emissions:

      (231 nm)

   further C2-emission from Mullikan band excitation:

(315 nm, 334 nm, 356 nm, 378 nm, 396 nm, 420 nm, 448 nm, 462 nm (2nd order))

   C2-LIF E-A / from E-A (0,3), (1,4) ... excitations:

      (Freymark bands, starting at about 240 nm)

   C2-LIF / Freymark band emissions:

      (238 nm, 230 nm)

   C2-LIF E-A / from E-A (0,2), (1,3) ... excitations:

      (Freymark bands, starting at about 229,7 nm)

   C2-LIF / Freymark band emissions:

      (230 nm, 222 nm, 214 nm, 207 nm)

   broadband fluorescence of hydrocarbon species:

      (about 250 nm to 450 nm)

   CO-LIF B-X / from B-X (0,0) and (1,1) excitations:

      (Hopfield-Birge bands, two-photon LIF:

       at 230,1 nm (0,0) and 230,3 nm (1,1))

Detected signals:

   Rayleigh scattering: UV and VIS

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

   CO-LIF B-X / from B-X (0,0) and (1,1) excitations:

      (Hopfield-Birge bands, two-photon LIF:

       at 230,1 nm (0,0) and 230,3 nm (1,1))

   CO-LIF / Angstrom band emissions:

      (412 nm, 439 nm) from (1,1)

      (451 nm, 483 nm, 520 nm, 561 nm, 609 nm) from (0,0)

   Rayleigh 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: 7,1 / entrance slit: 80 mm / sum of pulses: 50 /

UV pulse energy: about 4,00 to 4,07 mJ/pulse

   

Grating: 1200 lines/mm, only VIS excitation, Emissions: 365 to 400 nm

EES, point of measurement:

   center (inner cone of the flame)

Excitation wavelength:

   UV:  no UV excitation

   VIS: 476,00 nm to 452,00 nm

Emission wavelength:

   365 nm to 400 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: no UV excitation

   VIS: 460,40 nm

Detected signals:

   CN-LIF B-X / from B-X (0,2), (1,3), (2,4) excitations:

      (starting at 460,6 nm (0,2) and  457,5 nm (1,3))

   CN-LIF / B-X emissions:

      (389,0 nm, 387,9 nm, 386,8 nm)

   C2-LIF C-A / from C-A (0,3), (1,4) ... excitations:

      (Deslandres-d'Azambuja bands, starting at 469,7 nm)

   C2-LIF / Deslandres d'Azambuja band emissions:

      (385 nm)

   broadband fluorescence of hydrocarbon species:

      (emission wavelength: about 300 nm to 450 nm)

   (no signals detected in the off-center range of the flame) 

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: 9,0 / entrance slit: 50 mm / sum of pulses: 50 /

VIS pulse energy: about 23,5 to 26,0 mJ/pulse

   

Grating: 1200 lines/mm, only VIS excitation, Emissions: 400 to 435 nm

EES, point of measurement:

   center (inner cone of the flame)

Excitation wavelength:

   UV:  no UV excitation

   VIS: 476,00 nm to 452,00 nm

Emission wavelength:

   400 nm to 435 nm

Single Image:

   local distribution of signals inside the flame

Excitation wavelength:

   UV: no UV excitation

   VIS: 460,40 nm

Detected signals:

   CN-LIF B-X / from B-X (0,2) and (1,3) excitations:

      (starting at 460,5 nm (0,2) and  457,5 nm (1,3))

   CN-LIF / B-X emissions:

      (421,6 nm, 419,7 nm)

   C2-LIF d-a / from d-a (1,0), (2,1), (3,2) ... excitations:

      (Swan bands, starting at 471,0 nm)

   C2-LIF / Swan band emissions:

      (starting at 438 nm)

   C2-LIF C-A / from C-A (0,3), (1,4) ... excitations:

      (Deslandres-d'Azambuja bands, starting at 469,7 nm)

   C2-LIF / Deslandres d'Azambuja band emissions:

      (starting at: 410 nm, 438 nm)

   broadband fluorescence of hydrocarbon species:

      (emission wavelength: about 300 nm to 450 nm)

   (no signals detected in the off-center range of the flame)

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: 9,0 / entrance slit: 50 mm / sum of pulses: 50 /

VIS pulse energy: about 24,2 to 26,0 mJ/pulse

Go to Excitation-Emission-Spectra Database Homepage: