4.8 Article

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

Journal

ADVANCED MATERIALS
Volume 27, Issue 42, Pages 6630-+

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201502716

Keywords

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Funding

  1. NTU [M4081282]
  2. MOE [M4011362, MOE2011-T3-1-005]
  3. National Basic Research Program of China [2014CB339800]
  4. Cooperative Innovation Center of Terahertz Science
  5. National Natural Science Foundation of China [61422509, 61138001, 61427814, 61420106006]
  6. U.S. National Science Foundation [ECCS-1232081]
  7. Major National Development Project of Scientific Instruments and Equipment of China [2011YQ150021]

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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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