Polarization-Insensitive Metalenses at Visible Wavelengths [PDF]
Nano Letters, 2016 In this Letter, we demonstrate highly efficient, polarization-insensitive planar lenses (metalenses) at red, green, and blue wavelengths (λ = 660, 532, and 405 nm). Metalenses with numerical apertures (NA) of 0.85 and 0.6 and corresponding efficiencies as high as 60% and 90% are achieved.
Charles Roques-Carmes +2 more
exaly +10 more sources
A polarization-insensitive plasmonic photoconductive terahertz emitter [PDF]
AIP Advances, 2017 We present a polarization-insensitive plasmonic photoconductive terahertz emitter that uses a two-dimensional array of nanoscale cross-shaped apertures as the plasmonic contact electrodes.
Xurong Li +2 more
doaj +6 more sources
Optical trapping and manipulating with a transmissive and polarization-insensitive metalens [PDF]
Nanophotonics, 2023 Trapping and manipulating micro-objects and achieving high-precision measurements of tiny forces and displacements are of paramount importance in both physical and biological research.
Yang Dongni +6 more
doaj +4 more sources
Polarization-Insensitive Lithium Niobate-on-Insulator Interferometer [PDF]
MicromachinesThe key components of a polarization-independent electro-optic (EO) interferometer, including the beam splitter, mode converter, and directional coupler, are designed based on a lithium niobate (LN) platform on an integrated insulator to ensure high ...
Jiali Liao +7 more
doaj +4 more sources
Polarization-insensitive GaN metalenses at visible wavelengths [PDF]
Scientific Reports, 2021 The growth of wide-bandgap materials on patterned substrates has revolutionized the means with which we can improve the light output power of gallium nitride (GaN) light-emitting diodes (LEDs).
Meng-Hsin Chen +5 more
doaj +5 more sources
Polarization insensitive dual band metamaterial with absorptance for 5G sub-6 GHz applications [PDF]
Scientific Reports, 2022 A couple ring enclosed circular geometric resonator (CRECGR) based dual-band polarization insensitive metamaterial (MM) with high effective medium ratio (EMR), and excellent absorptance is proposed in this study, which can be utilized as a sensor and ...
Md. Mhedi Hasan +7 more
doaj +3 more sources
Design framework for polarization-insensitive multifunctional achromatic metalenses. [PDF]
Nanophotonics, 2022 Controlling the wavefront of light, especially on a subwavelength scale, is pivotal in modern optics. Metasurfaces present a unique platform for realizing flat lenses, called metalenses, with thicknesses on the order of the wavelength.
Heiden JT, Jang MS.
europepmc +6 more sources
Polarization-Insensitive Broadband THz Absorber Based on Circular Graphene Patches [PDF]
Nanomaterials, 2021 A polarization-insensitive broadband terahertz absorber based on single-layer graphene metasurface has been designed and simulated, in which the graphene metasurface is composed of isolated circular patches.
Jiajia Qian +6 more
doaj +4 more sources
High-fidelity and polarization-insensitive universal photonic processors fabricated by femtosecond laser writing. [PDF]
Nanophotonics, 2023 Universal photonic processors (UPPs) are fully programmable photonic integrated circuits that are key components in quantum photonics. With this work, we present a novel platform for the realization of low-loss, low-power, and high-fidelity UPPs based on
Pentangelo C +6 more
europepmc +3 more sources
Polarization-Insensitive Transmissive Metasurfaces Using Pancharatnam–Berry and Resonant Phases in Microwave Band [PDF]
Sensors, 2023 Most of the existing metasurfaces are effective for the incident wave with the specific circularly polarized (CP) or linearly polarized (LP) state, that is the polarization-sensitive metasurface.
Ling Wang +7 more
doaj +2 more sources