"Pietila, Jesse" - Selaus tekijän mukaan TUNICRIS-julkaisut

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    • Cross‐Phase Modulation via Time‐Varying Epsilon‐Near‐Zero Metasurfaces 

      Dhama, Rakesh; Hossain, Md Imran; Pietila, Jesse; Fordell, Thomas; Caglayan, Humeyra (04 / 2026)
      article

    • Double-phase metasurface operators for all-optical image processing 

      Yu, Linzhi; Singh, Haobijam J.; Pietila, Jesse; Caglayan, Humeyra (02 / 2026)
      article
      All-optical image processing offers a high-speed, energy-efficient alternative to conventional electronic systems by leveraging the wave nature of light for parallel computation. However, traditional optical processors ...

    • Epsilon-near-zero nanoparticles 

      Issah, Ibrahim; Pietila, Jesse; Kujala, Tommi; Koivurova, Matias; Caglayan, Humeyra; Ornigotti, Marco (02 / 2023)
      article
      In this work we propose epsilon-near-zero (ENZ) nanoparticles formed of metal and dielectric bilayers and employ the effective-medium approach for multilayered nanospheres to study their optical response. We obtain a passive ...