Pressure Broadening of the 1.3 μm Iodine Laser Line

Abstract

The storable energy of a high-power laser is inversely proportional to its stimulated emission cross-section o. By adding a foreign gas, the emission line is broadened and is thereby lowered. At one atmosphere of C02, 5 to 7 J/cm -2 can be stored, the hyperfine structure is largely blurred, and the amplification of pulses shorter than 100 psec should be possible. We

Deactivation of I(2P1/2) by CH3Cl, CH2Cl2, CHCl3, CCl3F, and CCl4

“…For the halogenated methanes, the corresponding rate constant for the perdeuterated molecule has been measured by Goncharuk et al [18]. It can be observed from Table I that there is a strong decrease in the quenching efficiency when the H atoms are replaced by D atoms as required for a quasi-resonant energy transfer mechanism; our values reflect the usual range of one to two orders of magnitude higher than for Dpartners.…”

3.7 Iodine lasers

“…The numerator bracket is now the summary Einstein coefficient A (last row of A very detailed information on the line wavelengths and widths can be found in [81Sch] and the pressure-dependent line profiles are given in [76Fus]. The hyperfine level scheme of the atomic iodine is very sensitive to the superimposed external magnetic field due to Zeeman effect.…”