Title of article :
Preparation of inverted medium and processing in the inverted medium
Author/Authors :
Ijaz Zafarullah، نويسنده , , Minghzen Tian، نويسنده , , Tiejun Chang، نويسنده , , W. Randall Babbitt، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Abstract :
The processing of weak optical signals in spatial-spectral holographic (SSH) materials coherently inverted with optical frequency chirped pulses were investigated. Simulations and experimental studies in image were conducted to characterize the parameters of the frequency chirped laser pulse used to invert the SSH material in order to obtain high photon echo efficiency for SSH lidar processing. Collinear and angled beam geometries and single shot and accumulated processes were investigated. Echo efficiencies as high as 450% were measured, significantly higher than the typical stimulated photon echo efficiency of 10%.
Keywords :
Optical signal amplification and processing , Stimulated photon echo , Gain medium
Journal title :
Journal of Luminescence
Journal title :
Journal of Luminescence