Complex wavefront engineering with disorder-engineered metasurfaces
نویسندگان
چکیده
Mooseok Jang,1, 3, ∗ Yu Horie,2, ∗ Atsushi Shibukawa,1, ∗ Joshua Brake,1 Yan Liu,1 Seyedeh Mahsa Kamali,2 Amir Arbabi,2, 4 Haowen Ruan,1 Andrei Faraon,2, † and Changhuei Yang1, ‡ 1Department of Electrical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, California 91125, USA 2T. J. Watson Laboratory of Applied Physics, California Institute of Technology, 1200 E. California Blvd., Pasadena, California 91125, USA 3Present address: Department of Physics, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, South Korea. 4Present address: Department of Electrical and Computer Engineering, University of Massachusetts, 151 Holdsworth Way, Amherst, Massachusetts 01003, USA.
منابع مشابه
Reflected wavefront manipulation based on ultrathin planar acoustic metasurfaces
The introduction of metasurfaces has renewed the Snell's law and opened up new degrees of freedom to tailor the optical wavefront at will. Here, we theoretically demonstrate that the generalized Snell's law can be achieved for reflected acoustic waves based on ultrathin planar acoustic metasurfaces. The metasurfaces are constructed with eight units of a solid structure to provide discrete phase...
متن کاملOptical metasurfaces: from planar to conformable optics
Abrupt modifications of the fields across an interface can be engineered by depositing an array of subwavelength resonators specifically tailored to address local amplitude, phase and polarization changes [1]. Physically, ultrathin nanostructure arrays, called “metasurfaces”, control light by engineering artificial boundary conditions of Maxwell’s equations. Metasurfaces have been implemented t...
متن کاملWavevector Selective Metasurfaces and Tunnel Vision Filters
Metasurfaces offer unprecedented flexibility in the design and control of light propagation, replacing bulk optical components and exhibiting exotic optical effects. One of the basic properties of the metasurfaces, which renders them as frequency selective surfaces, is the ability to transmit or reflect radiation within a narrow frequency band that can be engineered on demand. Here we introduce...
متن کاملActive Optical Metasurfaces Based on Defect-Engineered Phase-Transition Materials.
Active, widely tunable optical materials have enabled rapid advances in photonics and optoelectronics, especially in the emerging field of meta-devices. Here, we demonstrate that spatially selective defect engineering on the nanometer scale can transform phase-transition materials into optical metasurfaces. Using ion irradiation through nanometer-scale masks, we selectively defect-engineered th...
متن کاملWavefront modulation and subwavelength diffractive acoustics with an acoustic metasurface.
Metasurfaces are a family of novel wavefront-shaping devices with planar profile and subwavelength thickness. Acoustic metasurfaces with ultralow profile yet extraordinary wave manipulating properties would be highly desirable for improving the performance of many acoustic wave-based applications. However, designing acoustic metasurfaces with similar functionality to their electromagnetic count...
متن کامل