Publications 1 Monolithic topological honeycomb lens for achromatic focusing and imaging Optica, Vol. 9, No. 1, pp. 100-107. (2022) W. Zhu, F. Duan, K. Tatsumi, A. Beaucamp Article Design 2 Chromatically multi-focal optics based on micro-lens array design Optics Express, Vol. 28, No. 16, pp. 24123-24135. (2020) F. Duan, W. Zhu, Y. Han, B. Ju, A. Beaucamp Article Design Videos