研究目的
To propose a general design to construct high efficiency circularly polarized Airy beam generators with phase and amplitude modulation simultaneously by HMM.
研究成果
The study demonstrates the potential of HMM-based high-performance Airy beams by simultaneously varying amplitudes and phases of circularly polarized incident light at telecom wavelengths. The generation of Airy beam is demonstrated with numerical simulations with LCP at telecom wavelengths.
研究不足
The study is based on simulation and does not include experimental validation. The practical implementation and performance in real-world applications are not discussed.
1：Experimental Design and Method Selection:
The study proposes using HMM waveguide arrays to generate circularly polarized Airy beams at telecom wavelengths with both phase and amplitude modulation. The performance is verified through simulation.
2：Sample Selection and Data Sources:
The multilayer structure is made up of metal Ag and dielectric SiO2, with specific thicknesses for each layer.
3：List of Experimental Equipment and Materials:
Metal Ag (thickness of tm = 40 nm for each layer) and dielectric SiO2 (thickness of td = 40 nm for each layer).
4：Experimental Procedures and Operational Workflow:
The study involves changing the cross-sectional parameters of RHMM units to modulate the local transmission amplitude and propagation phase of cross-polarized electric field, and introducing geometric phase by changing the orientation angle of RHMM unit.
5：Data Analysis Methods:
Finite difference time domain (FDTD) method by commercial software Lumerical FDTD Solutions was used to model EM responses of RHMM waveguide arrays.
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