20 September 2002 Balanced homodyne detection technique for surface nonlinear optics
Author Affiliations +
In this paper, we present an ac optical balanced homodyne detection system which enables us to detect both the amplitude and phase of the surface optical nonlinear signal. In this system, a balancing scheme and an unique lock-in detection method using fundamental interference signal as a reference has been employed. This system enables us to simultaneously measure, with extremely high sensitivity of 3 aW and high precision, both the intensity and phase of a very weak surface SHG signal. Experimental results of simultaneous measurement of the intensity and phase in surface second-harmonic waves generated from native-oxidized Si (111) surfaces is presented.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jun Chen, Jun Chen, Susumu Machida, Susumu Machida, Yoshihisa Yamamoto, Yoshihisa Yamamoto, } "Balanced homodyne detection technique for surface nonlinear optics", Proc. SPIE 4919, Advanced Materials and Devices for Sensing and Imaging, (20 September 2002); doi: 10.1117/12.465753; https://doi.org/10.1117/12.465753

Back to Top