Add to ORKGVarifocal lenses, conventionally implemented by changing the axial distance between multiple optical elements, have a wide range of applications in imaging and optical beam scanning. The use of conventional bulky refractive elements makes these varifocal lenses large, slow, and limits their tunability. Metasurfaces, a new category of lithographically defined diffractive devices, enable thin and lightweight optical elements with precisely engineered phase profiles. Here we demonstrate tunable metasurface doublets, based on microelectromechanical systems (MEMS), with more than 60 diopters (about 4%) change in the optical power upon a 1-μm movement of one metasurface, and a scanning frequency that can potentially reach a few kHz. They can also...
Optical metasurfaces have shown to be a powerful approach to planar optical elements, enabling an un...
In the field of nanophotonics, metasurfaces have come to the forefront in real-world applications, o...
Traditional optical elements, such as refractive lenses, mirrors, phase plates and polarizers have b...
Varifocal lenses, conventionally implemented by changing the axial distance between multiple optical...
Tunable focusing is a desired property in a wide range of optical imaging and sensing technologies b...
In the past few decades, the advancements in nanotechnology have significantly altered many fields o...
Metasurfaces are a novel class of optical devices, made up of an array of subwavelength scatterers t...
Dielectric metasurfaces are two-dimensional structures composed of nano-scatterers that manipulate t...
The ability to control electromagnetic wavefront is a central key in optics. Conventional optical co...
Metasurfaces which emerged as two-dimensional counterparts of metamaterials, facilitate the realizat...
Miniaturized optical systems with planar form factors and low power consumption have many applicatio...
Metasurfaces are nano-structured devices composed of arrays of subwavelength scatterers (or meta-at...
We review the fundamentals and recent advances in the field of tunable dielectric metasurfaces. In p...
Physical geometry and optical properties of objects are correlated: cylinders focus light to a line,...
Miniaturized optical systems with planar form factors and low power consumption have many applicatio...
Optical metasurfaces have shown to be a powerful approach to planar optical elements, enabling an un...
In the field of nanophotonics, metasurfaces have come to the forefront in real-world applications, o...
Traditional optical elements, such as refractive lenses, mirrors, phase plates and polarizers have b...
Varifocal lenses, conventionally implemented by changing the axial distance between multiple optical...
Tunable focusing is a desired property in a wide range of optical imaging and sensing technologies b...
In the past few decades, the advancements in nanotechnology have significantly altered many fields o...
Metasurfaces are a novel class of optical devices, made up of an array of subwavelength scatterers t...
Dielectric metasurfaces are two-dimensional structures composed of nano-scatterers that manipulate t...
The ability to control electromagnetic wavefront is a central key in optics. Conventional optical co...
Metasurfaces which emerged as two-dimensional counterparts of metamaterials, facilitate the realizat...
Miniaturized optical systems with planar form factors and low power consumption have many applicatio...
Metasurfaces are nano-structured devices composed of arrays of subwavelength scatterers (or meta-at...
We review the fundamentals and recent advances in the field of tunable dielectric metasurfaces. In p...
Physical geometry and optical properties of objects are correlated: cylinders focus light to a line,...
Miniaturized optical systems with planar form factors and low power consumption have many applicatio...
Optical metasurfaces have shown to be a powerful approach to planar optical elements, enabling an un...
In the field of nanophotonics, metasurfaces have come to the forefront in real-world applications, o...
Traditional optical elements, such as refractive lenses, mirrors, phase plates and polarizers have b...