Time evolution and squeezing of the field amplitude in cavity QED

Summary form only given. Squeezing has traditionally been measured with a homodyne detector whose photocurrent output is frequency analyzed to quantify the noise reduction below the standard quantum limit. This measurement technique suffers from detection and propagation efficiencies. It seldom permits the complete reconstruction of the spectrum particularly when the frequency range is large. We have developed a new way to measure the squeezing spectrum through a third-order correlation function of the field. We correlate the detection of a photon with the record of the output of the photocurrent from a balanced homodyne detector. This method is a variant of the intensity correlation measurements that have shown non-classical features of the electromagnetic field.