Cross sections for dissociative ionization and dissociative excitation of H 2 + by single photon absorption

2014 ◽  
Vol 68 (9) ◽  
Author(s):  
Akinori Igarashi
2016 ◽  
Vol 858 ◽  
pp. 245-248 ◽  
Author(s):  
Hassan Hamad ◽  
Christophe Raynaud ◽  
Pascal Bevilacqua ◽  
Sigo Scharnholz ◽  
Bertrand Vergne ◽  
...  

Optical Beam Induced Current (OBIC) measurements are performed on 4H-SiC avalanche diodes with a very thin and a highly doped active region. A pulsed green laser, with a wavelength of 532 nm, illuminates a reverse biased diode leading to generate electron-hole pairs in the space charge region. Comparison between the 4H-SiC bandgap and the incident photon energy shows that single photon absorption process can be neglected and two-photon absorption process dominates in this case. Ionization rates are then extracted from multiplication curve in a high electric field range (3 to 5 MV.cm–1). Results are in good agreement with previous ones obtained on the same diodes using single photon absorption process.


1979 ◽  
Vol 70 (7) ◽  
pp. 3291-3299 ◽  
Author(s):  
Edward Catalano ◽  
Robert E. Barlettab) ◽  
Richard K. Pearson

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