TY - JOUR
T1 - Fermi and intramode relaxation phenomena in CO2lasers
AU - Rooth, Rudy A.
AU - van der Pol, Jacob A.
AU - Haselhoff, Eltjo H.
AU - Witteman, W.J.
PY - 1987
Y1 - 1987
N2 - Using a 1 ns pulse from a short-pulse CO2laser system, the evolution of the gain in a TEA system was studied during and after amplification. This resulted in a very direct observation of a few relaxation processes. We estimated the effective intramode relaxation rate constant to be larger than6 times 10^{6}torr-1/s. The Fermi relaxation time constant was found to be 30 ± 7 ns at 760 torr. We conclude that for nanosecond pulse amplification, intramode relaxation cannot be neglected.
AB - Using a 1 ns pulse from a short-pulse CO2laser system, the evolution of the gain in a TEA system was studied during and after amplification. This resulted in a very direct observation of a few relaxation processes. We estimated the effective intramode relaxation rate constant to be larger than6 times 10^{6}torr-1/s. The Fermi relaxation time constant was found to be 30 ± 7 ns at 760 torr. We conclude that for nanosecond pulse amplification, intramode relaxation cannot be neglected.
KW - IR-55630
U2 - 10.1109/JQE.1987.1073522
DO - 10.1109/JQE.1987.1073522
M3 - Article
VL - 23
SP - 1372
EP - 1377
JO - IEEE journal of quantum electronics
JF - IEEE journal of quantum electronics
SN - 0018-9197
IS - 8
ER -