The autolocalization of electrons photoexcited by laser pulses with a wavelength of 525 nm in the visible range and with a duration of 150 fs in an electron-hole plasma (density ∼10²¹ cm⁻³) in natural diamond at room temperature occurs unsteadily through step-by-step multiple (up to nine acts) emission of an optical phonon at subpicosecond times. This process is manifested for the probe photoluminescence signal in its fine periodic structure in the band gap beginning from the interband absorption edge. The intensity of multiphonon photoluminescence peaks reaches a maximum after four to six emission acts, where the energy of an electron-softened optical phonon is recovered and the broadening of peaks increases monotonically. Attributing the broadening of peaks to the kinetics of the emission of a successive phonon, one can compare their widths to the time dynamic scale of the electron-hole plasma and multiphonon emission during autolocalization. Then, the initial increase in the intensity of the peaks demonstrates the emission of phonons during autolocalization, whereas saturation and subsequent decrease are due to the subpicosecond Auger recombination of the plasma, which significantly suppresses photoluminescence because of the sharp decrease in the hole density (to 10¹⁹ cm⁻³), but not the process of autolocalization itself.

激光脉冲在可见光范围内的波长为525 nm且持续时间为150 fs的激光脉冲对光激发的电子进行自动定位（密度约为10 ²¹ cm ^-3）在室温下的天然钻石中会通过亚皮秒级的光学声子的逐步多次发射（最多九次动作）而不稳定地发生。对于探针光致发光信号，在其从带间吸收边缘开始的带隙中具有精细的周期性结构，就表明了这一过程。多声子光致发光峰的强度在四到六个发射动作后达到最大值，其中电子软化的声子的能量得以恢复，并且峰的增宽单调增加。将峰值的扩展归因于连续声子的发射动力学，可以将其宽度与自动定位过程中电子空穴等离子体和多声子发射的时间动态尺度进行比较。然后，¹⁹ cm ^-3），而不是自动定位过程本身。