Thursday, October 1, 2015

Abstract-A Tunable Dispersion-Free Terahertz Metadevice with Pancharatnam–Berry-Phase-Enabled Modulation and Polarization Control

  1. Longqing Cong1,2
  2. Ningning Xu3,
  3. Jiaguang Han4
  4. Weili Zhang3,*and
  5. Ranjan Singh1,2,*
Article first published online: 30 SEP 2015
DOI: 10.1002/adma.201502716;jsessionid=B2BDAF5543D657CCE7DA838DC3777D2E.f04t03?userIsAuthenticated=false&deniedAccessCustomisedMessage=

It is extremely challenging to control the phase of light at will in free space. Here, Pancharatnam–Berry-phase-enabled, tunable phase control of free-space light is experimentally demonstrated in an ultrathin flexible dispersion-free metadevice. This metadevice enables the broadband conversion of linearly polarized light into any desired output polarization.

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