Results 111 to 120 of about 233 (127)
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Multifocal metalens based on multilayer Pancharatnam–Berry phase elements architecture
Optics Letters, 2019In this Letter, we aim to answer the fundamental question of what will happen when two layers of Pancharatnam–Berry phase elements are superimposed on each other. The different diffraction orders and their respective phase changes of this structure are investigated by Jones matrix calculations.
Ronghui Lin, Xiaohang Li
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Design of multiwavelength confocal plane multifocal metalens based on CGH in visible band
24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 2020The traditional optical system is composed of multiple optical elements, which will lead to the huge volume and high cost of the optical system, which can not meet the needs of people in terms of performance. The emergence of metasurface has made a great breakthrough in the problems existing in optical systems.
Jinping Zhang +6 more
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Multifocal Metalens with Titanium Nitride Aperiodic Nanoapertures for Fiber Optical Wavelengths
2023Noble metals such as gold and silver used in plasmonic applications possess significant optical losses. Instead of these, alternative plasmonic materials such as doped silicon, doped germanium, and transition metal nitrides, whose plasma frequency can be controlled due to their low cost and tunable electron number, can be used. Titanium nitride, one of
Aslan, Erdem +2 more
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3D-Printed Phase-Multiplexed terahertz multifocal metalens
Optics & Laser TechnologyDong Li +6 more
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Multifocal Geometric Phase Metalens for Full-Stokes Polarization Detection
IEEE Sensors JournalYuanhui Li +4 more
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Focal-Length Measurement of Multifocal Metalens by Using Far-Field Imaging
IEEE Photonics Technology LettersMing Zhou +4 more
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