No abstract

Abstract:The results of an experimental investigation of the incoherent photon echo in ruby (with Cr 3+ concentration equal to 0.16 wt%) at T = 1.7 K are presented. Optical fiber with length 3 m and diameter 100 µm was used for delivery of the first exciting pulse to a sample. The dependence of the IPE intensity on the excitation wavelength within the width of R1 absorption line was studied. The IPE decay curve was obtained and the phase relaxation time was found to be equal to 98 ns. Oscillogram of incoherent backward photon echo (IPE) in concentrated ruby. The IPE signal is the first one at the right. The other pulses are the signals of diffraction corresponding to the first and the second exciting laser pulses

No abstract

No abstract