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Search: authors:"Guanghao Zhu"

3 papers found.
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A broadband reflective-type half-wave plate employing optical feedbacks

We propose and demonstrate a type of a broadband half-wave plate that operates in the reflective mode. It consists of a metal grating embedded in a dielectric slab and placed on top of a grounded metal surface. We theoretically show that owing to the optical feedback effect which originates from the wave reflections at the air-dielectric interface, the proposed half-wave plate...

Designing perfect linear polarization converters using perfect electric and magnetic conducting surfaces

Engineering, Nanjing University, Nanjing, 210023, ChinaGaochao Zhou, Xudong Tao, Ze Shen, Guanghao Zhu, Biaobing Jin, Lin Kang, Weiwei Xu, Jian Chen & Peiheng Wu AuthorsSearch for Gaochao Zhou in:Nature ... Guanghao Zhu in:Nature Research journals • PubMed • Google ScholarSearch for Biaobing Jin in:Nature Research journals • PubMed • Google ScholarSearch for Lin Kang in:Nature Research journals • PubMed

Design of a polarization-insensitive superconducting nanowire single photon detector with high detection efficiency

Superconducting nanowire single photon detectors (SNSPDs) deliver superior performance over their competitors in the near-infrared regime. However, these detectors have an intrinsic polarization dependence on the incident wave because of their one-dimensional meander structure. In this paper, we propose an approach to eliminate the polarization sensitivity of SNSPDs by using near...