Ning Hua Zhu

Improved optical heterodyne methods for measuring frequency responses of photodetectors

Wei Wang, Ning Hua Zhu, Ji Min Wen, 2006, IEEE Journal of Quantum Electronics.

Development of Swept Frequency Method for Measuring Frequency Response of Photodetectors Based on Harmonic Analysis

Ning Hua Zhu, Bang Hong Zhang, Wei Han, 2009, IEEE Photonics Technology Letters.

A 16-term error model based on linear equations of voltage and current variables

K. Silvonen, Ning Hua Zhu, Yu Liu, 2006, IEEE Transactions on Microwave Theory and Techniques.