(1) Department of Physics, Laboratory for Quantum Optics, East China Normal University, 200062 Shanghai, China
Abstract:
Optical heterodyne detection using 500 MHz phase modulation was combined with the Zeeman modulation-magnetic rotation spectroscopy
(ZM-MRS) to form a new spectroscopic technique, which effectively reduced the amplitude fluctuation from laser source and
greatly improved the signal-to-noise ratio in the detection of transient molecules.