Abstract

In photon-gated spectral hole burning, a hole is formed via a higher excited state produced by simultaneous laser irradiation at two different wavelengths¹⁾. One is the wavelength-selective light which promotes the ground state molecules to the first excited state, and the other is the gating light which promotes the excited molecules to the higher excited reaction sate. Only the wavelength-selective light is required to read out spectral holes and the recorded holes are not destroyed. Moreover, the gating light pumps the molecules up to the reaction state effectively, which may break through the bottleneck effect and enhance the recording sensitivity.

© 1992 Optical Society of America