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Applied Physics Letters

Dielectric metasurfaces for quantum weak measurements

Shizhen Chen, Xinxing Zhou, Chengquan Mi, Zhenxing Liu, Hailu Luo, Shuangchun Wen

Published Apr 17, 2017• 23 citations
Publisher

Abstract

Metasurfaces have shown extraordinary abilities to manipulate the phase and polarization of light and thus hold great promise for applications in photonics and optoelectronics. Here, we propose a unique application of the dielectric metasurface for quantum weak measurements. In our scheme, the dielectric metasurface introduces a tiny phase gradient in the procedure of measurements and keeps the measured system almost undisturbed. The dielectric metasurface may improve and simplify already existing schemes in quantum weak measurements and thereby provide potential applications in precise measurements of phase, polarization, and frequency of light.

DOI
10.1063/1.4982164

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Metasurfaces have shown extraordinary abilities to manipulate the phase and polarization of light and thus hold great promise for applications in photonics and optoelectronics. Here, we propose a unique application of the dielectric metasurface for quantum weak measurements. In our scheme, the dielectric metasurface introduces a tiny phase gradient in the procedure of measurements and keeps the measured system almost undisturbed. The dielectric metasurface may improve and simplify already existing schemes in quantum weak measurements and thereby provide potential applications in precise measurements of phase, polarization, and frequency of light.
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Metasurface holography has great application potential in the fields of optical display, optical storage, and security. Traditional metasurface holography uses the well-designed subwavelength structure to modulate the incident laser beam. Although many researches about laser metasurface holography have been realized, metasurface holography based on quantum light sources is rare. Here, we realized quantum metasurface holography through single-photon and multichannel polarization multiplexing metasurfaces, and we compared the quantum results with laser results. Our work proves that quantum light sources can be well modulated by the subwavelength structure of integrated metasurfaces and extend both fields of metasurfaces and quantum optics. This result shows that metasurfaces have the potential for use in various quantum devices to reduce the size of quantum devices, improve quantum efficiency, and enhance practicability, reliability, and accuracy.