scholarly journals Pressure Dependence of Degenerate Four-Wave Mixing in SO2: Effect of the Thermal Gratings

2000 ◽  
Vol 18 (4) ◽  
pp. 167-176 ◽  
Author(s):  
Shiming Shi ◽  
Deying Chen ◽  
Qike Zheng ◽  
Maria Person ◽  
Qizong Qin
Keyword(s):  
Pressure Dependence ◽  
Laser Intensity ◽  
Four Wave Mixing ◽  
Buffer Gas ◽  
Wave Mixing ◽  
Thermal Grating ◽  
Degenerate Four Wave Mixing ◽  
Signal Intensities

The degenerate four wave mixing (DFWM) spectrum of the A(1A2)← X(1A1) and B(1B1)← X(1A1) transitions of SO2 in the 299.5–305 nm region is presented. It has been found that the DFWM signal intensities are proportional to the cube of laser intensity and the square of SO2 pressure. The DFWM signal increases dramatically with the pressure of N2 as a buffer gas. The enhancement of the DFWM signal can be mainly attributed to the thermal grating contribution.

Resonant degenerate four-wave mixing in I_2: effect of buffer gas pressure

1995 ◽  
Vol 34 (18) ◽  
pp. 3281 ◽  
Author(s):  
Peter Barker ◽  
Amberyn Thomas ◽  
Halina Rubinsztein-Dunlop ◽  
Ove Axner ◽  
Nikolai Chekalin
Keyword(s):  
Four Wave Mixing ◽  
Gas Pressure ◽  
Buffer Gas ◽  
Wave Mixing ◽  
Degenerate Four Wave Mixing

Thermal grating and broadband degenerate four-wave mixing spectroscopy of OH in high-pressure flames

1998 ◽  
Vol 67 (5) ◽  
pp. 667-673 ◽  
Author(s):  
H. Latzel ◽  
A. Dreizler ◽  
T. Dreier ◽  
J. Heinze ◽  
M. Dillmann ◽  
...  
Keyword(s):  
High Pressure ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Thermal Grating ◽  
Degenerate Four Wave Mixing
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