Absolute phase measurement in heterodyne detection of transient gratings.
We present a method of measuring the absolute phase in heterodyne-detected transient grating experiments. The method permits direct and sensitive characterization of the amplitude and phase of the grating parameters. We also present a convenient implementation of this technique and demonstrate its efficacy in a cuprate superconductor.
Gedik
Nuh
N
Materials Sciences Division, Lawrence Berkeley National Laboratory and Department of Physics, University of California, Berkeley, Berkeley, California 94720, USA. gedik@socrates.berkeley.edu
Orenstein
Joseph
J