Modulated optical transmission of subwavelength hole arrays in metal- v O 2 films

J. Y. Suh, E. U. Donev, R. Lopez, L. C. Feldman, R. F. Haglund

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We demonstrate the modulation of the transmission of near-infrared light through a periodic array of subwavelength apertures in Ag-V O2 and Au-V O2 double-layer films using the semiconductor-to-metal phase transition in V O2. The transmitted intensity ratio increases by a factor of 8 as the V O2 goes from the semiconductor to the metal phase. We attribute this modulation to the switchable dielectric-permittivity contrast between the air-filled holes in the array and the surrounding V O2 material, a conjecture that is semiquantitatively confirmed by simulation.

Original languageEnglish
Article number133115
JournalApplied Physics Letters
Issue number13
Publication statusPublished - Apr 10 2006


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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