6533b86efe1ef96bd12cbe3e
RESEARCH PRODUCT
Optical force rectifiers based on PT-symmetric metasurfaces
Burak GurlekRasoul AlaeeJohan ChristensenMuamer Kadicsubject
[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]PhysicsElectromagnetic field calculationsMaterialesExceptional pointbusiness.industryOptical forceFísicaPhysics::Optics02 engineering and technology021001 nanoscience & nanotechnology01 natural sciences[SPI.MAT]Engineering Sciences [physics]/MaterialsRectifierRectificationMetamaterials0103 physical sciencesSpark (mathematics)OptoelectronicsElectrónica[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics010306 general physics0210 nano-technologybusinessdescription
We introduce here the concept of optical force rectifier based on parity-time symmetric metasurfaces. Directly linked to the properties of non-Hermitian systems engineered by balanced loss and gain constituents, we show that light can exert asymmetric pulling or pushing forces on metasurfaces depending on the direction of the impinging light. This generates a complete force rectification in the vicinity of the exceptional point. Our findings have the potential to spark the design of applications in optical manipulation where the forces, strictly speaking, act unidirectionally. R.A. and B.G. would like to acknowledge financial support from the Max Planck Society. J.C. acknowledges the support from the European Research Council (ERC) through Starting Grant No. 714577 PHONOMETA and from the MINECO through a Ramón y Cajal grant (Grant No. RYC-2015-17156). This project has been performed in cooperation with the Labex ACTION program (Contract No. ANR-11-LABX-0001-01) and was supported by the French Investissements d’Avenir program, Project ISITE-BFC (Contract No. ANR-15-IDEX-03).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-05-14 | Physical Review B |